Home / 16,691.80-25,029.60-9,288.40

Finding the Fourth Proportional to 16,691.80, 25,029.60 and 9,288.40

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Solution

The fourth proportional to 16,691.80, 25,029.60 and 9,288.40 is: 13,928.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,691.80 : 25,029.60 = 9,288.40 : x
  2. Step 2: Convert to fraction form
    16,691.80/25,029.60 = 9,288.40/x
  3. Step 3: Cross multiply
    16,691.80x = 25,029.60 × 9,288.40
  4. Step 4: Simplify right side
    16,691.80x = 232,484,936.64
  5. Step 5: Solve for x
    x = 232,484,936.64/16,691.80
  6. Step 6: Final answer
    x = 13,928.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.