Home / 15,897.12-21,939.02-8,823.66

Finding the Fourth Proportional to 15,897.12, 21,939.02 and 8,823.66

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Solution

The fourth proportional to 15,897.12, 21,939.02 and 8,823.66 is: 12,177.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,897.12 : 21,939.02 = 8,823.66 : x
  2. Step 2: Convert to fraction form
    15,897.12/21,939.02 = 8,823.66/x
  3. Step 3: Cross multiply
    15,897.12x = 21,939.02 × 8,823.66
  4. Step 4: Simplify right side
    15,897.12x = 193,582,453.21
  5. Step 5: Solve for x
    x = 193,582,453.21/15,897.12
  6. Step 6: Final answer
    x = 12,177.20

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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.