Home / 10,088.28-15,122.70-5,160.24

Finding the Fourth Proportional to 10,088.28, 15,122.70 and 5,160.24

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Solution

The fourth proportional to 10,088.28, 15,122.70 and 5,160.24 is: 7,735.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,088.28 : 15,122.70 = 5,160.24 : x
  2. Step 2: Convert to fraction form
    10,088.28/15,122.70 = 5,160.24/x
  3. Step 3: Cross multiply
    10,088.28x = 15,122.70 × 5,160.24
  4. Step 4: Simplify right side
    10,088.28x = 78,036,761.45
  5. Step 5: Solve for x
    x = 78,036,761.45/10,088.28
  6. Step 6: Final answer
    x = 7,735.39

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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.