Home / 15,897.20-21,937.86-8,823.47

Finding the Fourth Proportional to 15,897.20, 21,937.86 and 8,823.47

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Solution

The fourth proportional to 15,897.20, 21,937.86 and 8,823.47 is: 12,176.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,897.20 : 21,937.86 = 8,823.47 : x
  2. Step 2: Convert to fraction form
    15,897.20/21,937.86 = 8,823.47/x
  3. Step 3: Cross multiply
    15,897.20x = 21,937.86 × 8,823.47
  4. Step 4: Simplify right side
    15,897.20x = 193,567,939.88
  5. Step 5: Solve for x
    x = 193,567,939.88/15,897.20
  6. Step 6: Final answer
    x = 12,176.23

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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.