Home / 13,520.90-20,260.45-10,552.31

Finding the Fourth Proportional to 13,520.90, 20,260.45 and 10,552.31

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Solution

The fourth proportional to 13,520.90, 20,260.45 and 10,552.31 is: 15,812.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520.90 : 20,260.45 = 10,552.31 : x
  2. Step 2: Convert to fraction form
    13,520.90/20,260.45 = 10,552.31/x
  3. Step 3: Cross multiply
    13,520.90x = 20,260.45 × 10,552.31
  4. Step 4: Simplify right side
    13,520.90x = 213,794,395.08
  5. Step 5: Solve for x
    x = 213,794,395.08/13,520.90
  6. Step 6: Final answer
    x = 15,812.14

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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.