Home / 16,389.24-22,560.30-12,403.32

Finding the Fourth Proportional to 16,389.24, 22,560.30 and 12,403.32

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Solution

The fourth proportional to 16,389.24, 22,560.30 and 12,403.32 is: 17,073.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,389.24 : 22,560.30 = 12,403.32 : x
  2. Step 2: Convert to fraction form
    16,389.24/22,560.30 = 12,403.32/x
  3. Step 3: Cross multiply
    16,389.24x = 22,560.30 × 12,403.32
  4. Step 4: Simplify right side
    16,389.24x = 279,822,620.20
  5. Step 5: Solve for x
    x = 279,822,620.20/16,389.24
  6. Step 6: Final answer
    x = 17,073.56

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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.