Home / 13,987.50-20,974.41-6,585.72

Finding the Fourth Proportional to 13,987.50, 20,974.41 and 6,585.72

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Solution

The fourth proportional to 13,987.50, 20,974.41 and 6,585.72 is: 9,875.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.50 : 20,974.41 = 6,585.72 : x
  2. Step 2: Convert to fraction form
    13,987.50/20,974.41 = 6,585.72/x
  3. Step 3: Cross multiply
    13,987.50x = 20,974.41 × 6,585.72
  4. Step 4: Simplify right side
    13,987.50x = 138,131,591.43
  5. Step 5: Solve for x
    x = 138,131,591.43/13,987.50
  6. Step 6: Final answer
    x = 9,875.36

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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.