Home / 10,125.53-15,155.87-5,434.01

Finding the Fourth Proportional to 10,125.53, 15,155.87 and 5,434.01

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Solution

The fourth proportional to 10,125.53, 15,155.87 and 5,434.01 is: 8,133.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125.53 : 15,155.87 = 5,434.01 : x
  2. Step 2: Convert to fraction form
    10,125.53/15,155.87 = 5,434.01/x
  3. Step 3: Cross multiply
    10,125.53x = 15,155.87 × 5,434.01
  4. Step 4: Simplify right side
    10,125.53x = 82,357,046.19
  5. Step 5: Solve for x
    x = 82,357,046.19/10,125.53
  6. Step 6: Final answer
    x = 8,133.61

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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.