Home / 15,538.13-21,442.77-8,823.90

Finding the Fourth Proportional to 15,538.13, 21,442.77 and 8,823.90

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Solution

The fourth proportional to 15,538.13, 21,442.77 and 8,823.90 is: 12,177.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,538.13 : 21,442.77 = 8,823.90 : x
  2. Step 2: Convert to fraction form
    15,538.13/21,442.77 = 8,823.90/x
  3. Step 3: Cross multiply
    15,538.13x = 21,442.77 × 8,823.90
  4. Step 4: Simplify right side
    15,538.13x = 189,208,858.20
  5. Step 5: Solve for x
    x = 189,208,858.20/15,538.13
  6. Step 6: Final answer
    x = 12,177.07

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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.