Home / 8,425.49-12,638.23-4,727.77

Finding the Fourth Proportional to 8,425.49, 12,638.23 and 4,727.77

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Solution

The fourth proportional to 8,425.49, 12,638.23 and 4,727.77 is: 7,091.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,425.49 : 12,638.23 = 4,727.77 : x
  2. Step 2: Convert to fraction form
    8,425.49/12,638.23 = 4,727.77/x
  3. Step 3: Cross multiply
    8,425.49x = 12,638.23 × 4,727.77
  4. Step 4: Simplify right side
    8,425.49x = 59,750,601.23
  5. Step 5: Solve for x
    x = 59,750,601.23/8,425.49
  6. Step 6: Final answer
    x = 7,091.65

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.