Home / 15,329.16-21,149.88-8,614.08

Finding the Fourth Proportional to 15,329.16, 21,149.88 and 8,614.08

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Solution

The fourth proportional to 15,329.16, 21,149.88 and 8,614.08 is: 11,884.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,329.16 : 21,149.88 = 8,614.08 : x
  2. Step 2: Convert to fraction form
    15,329.16/21,149.88 = 8,614.08/x
  3. Step 3: Cross multiply
    15,329.16x = 21,149.88 × 8,614.08
  4. Step 4: Simplify right side
    15,329.16x = 182,186,758.31
  5. Step 5: Solve for x
    x = 182,186,758.31/15,329.16
  6. Step 6: Final answer
    x = 11,884.98

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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.