Home / 16,987.20-25,470.45-7,625.40

Finding the Fourth Proportional to 16,987.20, 25,470.45 and 7,625.40

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Solution

The fourth proportional to 16,987.20, 25,470.45 and 7,625.40 is: 11,433.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,987.20 : 25,470.45 = 7,625.40 : x
  2. Step 2: Convert to fraction form
    16,987.20/25,470.45 = 7,625.40/x
  3. Step 3: Cross multiply
    16,987.20x = 25,470.45 × 7,625.40
  4. Step 4: Simplify right side
    16,987.20x = 194,222,369.43
  5. Step 5: Solve for x
    x = 194,222,369.43/16,987.20
  6. Step 6: Final answer
    x = 11,433.45

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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.