Home / 10,430.92-14,394.12-5,715.10

Finding the Fourth Proportional to 10,430.92, 14,394.12 and 5,715.10

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Solution

The fourth proportional to 10,430.92, 14,394.12 and 5,715.10 is: 7,886.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,430.92 : 14,394.12 = 5,715.10 : x
  2. Step 2: Convert to fraction form
    10,430.92/14,394.12 = 5,715.10/x
  3. Step 3: Cross multiply
    10,430.92x = 14,394.12 × 5,715.10
  4. Step 4: Simplify right side
    10,430.92x = 82,263,835.21
  5. Step 5: Solve for x
    x = 82,263,835.21/10,430.92
  6. Step 6: Final answer
    x = 7,886.54

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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.