Home / 16,438.20-22,687.08-9,365.28

Finding the Fourth Proportional to 16,438.20, 22,687.08 and 9,365.28

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Solution

The fourth proportional to 16,438.20, 22,687.08 and 9,365.28 is: 12,925.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,438.20 : 22,687.08 = 9,365.28 : x
  2. Step 2: Convert to fraction form
    16,438.20/22,687.08 = 9,365.28/x
  3. Step 3: Cross multiply
    16,438.20x = 22,687.08 × 9,365.28
  4. Step 4: Simplify right side
    16,438.20x = 212,470,856.58
  5. Step 5: Solve for x
    x = 212,470,856.58/16,438.20
  6. Step 6: Final answer
    x = 12,925.43

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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.