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Finding the Fourth Proportional to 10,602.64, 15,903.96 and 4,759.12

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Solution

The fourth proportional to 10,602.64, 15,903.96 and 4,759.12 is: 7,138.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,602.64 : 15,903.96 = 4,759.12 : x
  2. Step 2: Convert to fraction form
    10,602.64/15,903.96 = 4,759.12/x
  3. Step 3: Cross multiply
    10,602.64x = 15,903.96 × 4,759.12
  4. Step 4: Simplify right side
    10,602.64x = 75,688,854.12
  5. Step 5: Solve for x
    x = 75,688,854.12/10,602.64
  6. Step 6: Final answer
    x = 7,138.68

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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.