Home / 10,119.28-15,134.55-6,159.61

Finding the Fourth Proportional to 10,119.28, 15,134.55 and 6,159.61

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Solution

The fourth proportional to 10,119.28, 15,134.55 and 6,159.61 is: 9,212.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,119.28 : 15,134.55 = 6,159.61 : x
  2. Step 2: Convert to fraction form
    10,119.28/15,134.55 = 6,159.61/x
  3. Step 3: Cross multiply
    10,119.28x = 15,134.55 × 6,159.61
  4. Step 4: Simplify right side
    10,119.28x = 93,222,925.53
  5. Step 5: Solve for x
    x = 93,222,925.53/10,119.28
  6. Step 6: Final answer
    x = 9,212.41

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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.