Home / 10,358.90-15,520.05-10,016.30

Finding the Fourth Proportional to 10,358.90, 15,520.05 and 10,016.30

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Solution

The fourth proportional to 10,358.90, 15,520.05 and 10,016.30 is: 15,006.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,358.90 : 15,520.05 = 10,016.30 : x
  2. Step 2: Convert to fraction form
    10,358.90/15,520.05 = 10,016.30/x
  3. Step 3: Cross multiply
    10,358.90x = 15,520.05 × 10,016.30
  4. Step 4: Simplify right side
    10,358.90x = 155,453,476.82
  5. Step 5: Solve for x
    x = 155,453,476.82/10,358.90
  6. Step 6: Final answer
    x = 15,006.76

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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.