Home / 15,559.62-21,472.30-8,486.08

Finding the Fourth Proportional to 15,559.62, 21,472.30 and 8,486.08

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Solution

The fourth proportional to 15,559.62, 21,472.30 and 8,486.08 is: 11,710.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,559.62 : 21,472.30 = 8,486.08 : x
  2. Step 2: Convert to fraction form
    15,559.62/21,472.30 = 8,486.08/x
  3. Step 3: Cross multiply
    15,559.62x = 21,472.30 × 8,486.08
  4. Step 4: Simplify right side
    15,559.62x = 182,215,655.58
  5. Step 5: Solve for x
    x = 182,215,655.58/15,559.62
  6. Step 6: Final answer
    x = 11,710.80

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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.