Home / 16,399.86-22,642.11-11,362.20

Finding the Fourth Proportional to 16,399.86, 22,642.11 and 11,362.20

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Solution

The fourth proportional to 16,399.86, 22,642.11 and 11,362.20 is: 15,686.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,399.86 : 22,642.11 = 11,362.20 : x
  2. Step 2: Convert to fraction form
    16,399.86/22,642.11 = 11,362.20/x
  3. Step 3: Cross multiply
    16,399.86x = 22,642.11 × 11,362.20
  4. Step 4: Simplify right side
    16,399.86x = 257,264,182.24
  5. Step 5: Solve for x
    x = 257,264,182.24/16,399.86
  6. Step 6: Final answer
    x = 15,686.97

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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.