Home / 16,931.80-25,412.10-7,586.20

Finding the Fourth Proportional to 16,931.80, 25,412.10 and 7,586.20

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Solution

The fourth proportional to 16,931.80, 25,412.10 and 7,586.20 is: 11,385.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,931.80 : 25,412.10 = 7,586.20 : x
  2. Step 2: Convert to fraction form
    16,931.80/25,412.10 = 7,586.20/x
  3. Step 3: Cross multiply
    16,931.80x = 25,412.10 × 7,586.20
  4. Step 4: Simplify right side
    16,931.80x = 192,781,273.02
  5. Step 5: Solve for x
    x = 192,781,273.02/16,931.80
  6. Step 6: Final answer
    x = 11,385.75

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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.