Home / 15,326.88-21,148.72-8,611.17

Finding the Fourth Proportional to 15,326.88, 21,148.72 and 8,611.17

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Solution

The fourth proportional to 15,326.88, 21,148.72 and 8,611.17 is: 11,882.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,326.88 : 21,148.72 = 8,611.17 : x
  2. Step 2: Convert to fraction form
    15,326.88/21,148.72 = 8,611.17/x
  3. Step 3: Cross multiply
    15,326.88x = 21,148.72 × 8,611.17
  4. Step 4: Simplify right side
    15,326.88x = 182,115,223.20
  5. Step 5: Solve for x
    x = 182,115,223.20/15,326.88
  6. Step 6: Final answer
    x = 11,882.08

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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.