Home / 10,329.28-15,455.64-6,171.55

Finding the Fourth Proportional to 10,329.28, 15,455.64 and 6,171.55

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Solution

The fourth proportional to 10,329.28, 15,455.64 and 6,171.55 is: 9,234.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,329.28 : 15,455.64 = 6,171.55 : x
  2. Step 2: Convert to fraction form
    10,329.28/15,455.64 = 6,171.55/x
  3. Step 3: Cross multiply
    10,329.28x = 15,455.64 × 6,171.55
  4. Step 4: Simplify right side
    10,329.28x = 95,385,255.04
  5. Step 5: Solve for x
    x = 95,385,255.04/10,329.28
  6. Step 6: Final answer
    x = 9,234.45

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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.