Home / 15,559.32-21,472.38-8,486.13

Finding the Fourth Proportional to 15,559.32, 21,472.38 and 8,486.13

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Solution

The fourth proportional to 15,559.32, 21,472.38 and 8,486.13 is: 11,711.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,559.32 : 21,472.38 = 8,486.13 : x
  2. Step 2: Convert to fraction form
    15,559.32/21,472.38 = 8,486.13/x
  3. Step 3: Cross multiply
    15,559.32x = 21,472.38 × 8,486.13
  4. Step 4: Simplify right side
    15,559.32x = 182,217,408.09
  5. Step 5: Solve for x
    x = 182,217,408.09/15,559.32
  6. Step 6: Final answer
    x = 11,711.14

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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.