Home / 8,123.20-11,210.22-4,585.72

Finding the Fourth Proportional to 8,123.20, 11,210.22 and 4,585.72

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Solution

The fourth proportional to 8,123.20, 11,210.22 and 4,585.72 is: 6,328.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.20 : 11,210.22 = 4,585.72 : x
  2. Step 2: Convert to fraction form
    8,123.20/11,210.22 = 4,585.72/x
  3. Step 3: Cross multiply
    8,123.20x = 11,210.22 × 4,585.72
  4. Step 4: Simplify right side
    8,123.20x = 51,406,930.06
  5. Step 5: Solve for x
    x = 51,406,930.06/8,123.20
  6. Step 6: Final answer
    x = 6,328.41

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Half scale
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Double scale
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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.