Home / 15,348.86-21,182.65-8,634.08

Finding the Fourth Proportional to 15,348.86, 21,182.65 and 8,634.08

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Solution

The fourth proportional to 15,348.86, 21,182.65 and 8,634.08 is: 11,915.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,348.86 : 21,182.65 = 8,634.08 : x
  2. Step 2: Convert to fraction form
    15,348.86/21,182.65 = 8,634.08/x
  3. Step 3: Cross multiply
    15,348.86x = 21,182.65 × 8,634.08
  4. Step 4: Simplify right side
    15,348.86x = 182,892,726.08
  5. Step 5: Solve for x
    x = 182,892,726.08/15,348.86
  6. Step 6: Final answer
    x = 11,915.72

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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.