Home / 15,553.35-21,462.57-8,479.62

Finding the Fourth Proportional to 15,553.35, 21,462.57 and 8,479.62

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Solution

The fourth proportional to 15,553.35, 21,462.57 and 8,479.62 is: 11,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.35 : 21,462.57 = 8,479.62 : x
  2. Step 2: Convert to fraction form
    15,553.35/21,462.57 = 8,479.62/x
  3. Step 3: Cross multiply
    15,553.35x = 21,462.57 × 8,479.62
  4. Step 4: Simplify right side
    15,553.35x = 181,994,437.82
  5. Step 5: Solve for x
    x = 181,994,437.82/15,553.35
  6. Step 6: Final answer
    x = 11,701.30

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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.