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Finding the Fourth Proportional to 10,630.58, 15,945.87 and 7,547.81

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Solution

The fourth proportional to 10,630.58, 15,945.87 and 7,547.81 is: 11,321.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,630.58 : 15,945.87 = 7,547.81 : x
  2. Step 2: Convert to fraction form
    10,630.58/15,945.87 = 7,547.81/x
  3. Step 3: Cross multiply
    10,630.58x = 15,945.87 × 7,547.81
  4. Step 4: Simplify right side
    10,630.58x = 120,356,405.42
  5. Step 5: Solve for x
    x = 120,356,405.42/10,630.58
  6. Step 6: Final answer
    x = 11,321.71

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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.