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Finding the Fourth Proportional to 8,783.34, 12,123.18 and 5,248.65

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Solution

The fourth proportional to 8,783.34, 12,123.18 and 5,248.65 is: 7,244.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,783.34 : 12,123.18 = 5,248.65 : x
  2. Step 2: Convert to fraction form
    8,783.34/12,123.18 = 5,248.65/x
  3. Step 3: Cross multiply
    8,783.34x = 12,123.18 × 5,248.65
  4. Step 4: Simplify right side
    8,783.34x = 63,630,328.71
  5. Step 5: Solve for x
    x = 63,630,328.71/8,783.34
  6. Step 6: Final answer
    x = 7,244.43

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Half scale
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Double scale
Find fourth proportional to 8,784.34, 12,124.56 and 5,249.65
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.