Home / 15,417.11-21,275.60-8,343.53

Finding the Fourth Proportional to 15,417.11, 21,275.60 and 8,343.53

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Solution

The fourth proportional to 15,417.11, 21,275.60 and 8,343.53 is: 11,514.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,417.11 : 21,275.60 = 8,343.53 : x
  2. Step 2: Convert to fraction form
    15,417.11/21,275.60 = 8,343.53/x
  3. Step 3: Cross multiply
    15,417.11x = 21,275.60 × 8,343.53
  4. Step 4: Simplify right side
    15,417.11x = 177,513,500.49
  5. Step 5: Solve for x
    x = 177,513,500.49/15,417.11
  6. Step 6: Final answer
    x = 11,514.06

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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.