Home / 10,628.52-15,931.08-4,385.12

Finding the Fourth Proportional to 10,628.52, 15,931.08 and 4,385.12

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Solution

The fourth proportional to 10,628.52, 15,931.08 and 4,385.12 is: 6,572.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,628.52 : 15,931.08 = 4,385.12 : x
  2. Step 2: Convert to fraction form
    10,628.52/15,931.08 = 4,385.12/x
  3. Step 3: Cross multiply
    10,628.52x = 15,931.08 × 4,385.12
  4. Step 4: Simplify right side
    10,628.52x = 69,859,697.53
  5. Step 5: Solve for x
    x = 69,859,697.53/10,628.52
  6. Step 6: Final answer
    x = 6,572.85

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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.