Home / 15,600.68-21,521.43-11,345.15

Finding the Fourth Proportional to 15,600.68, 21,521.43 and 11,345.15

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Solution

The fourth proportional to 15,600.68, 21,521.43 and 11,345.15 is: 15,650.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,600.68 : 21,521.43 = 11,345.15 : x
  2. Step 2: Convert to fraction form
    15,600.68/21,521.43 = 11,345.15/x
  3. Step 3: Cross multiply
    15,600.68x = 21,521.43 × 11,345.15
  4. Step 4: Simplify right side
    15,600.68x = 244,163,851.56
  5. Step 5: Solve for x
    x = 244,163,851.56/15,600.68
  6. Step 6: Final answer
    x = 15,650.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.