Home / 16,419.20-22,658.53-9,345.63

Finding the Fourth Proportional to 16,419.20, 22,658.53 and 9,345.63

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Solution

The fourth proportional to 16,419.20, 22,658.53 and 9,345.63 is: 12,896.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,419.20 : 22,658.53 = 9,345.63 : x
  2. Step 2: Convert to fraction form
    16,419.20/22,658.53 = 9,345.63/x
  3. Step 3: Cross multiply
    16,419.20x = 22,658.53 × 9,345.63
  4. Step 4: Simplify right side
    16,419.20x = 211,758,077.70
  5. Step 5: Solve for x
    x = 211,758,077.70/16,419.20
  6. Step 6: Final answer
    x = 12,896.98

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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.