Home / 15,234.30-21,023.37-8,862.42

Finding the Fourth Proportional to 15,234.30, 21,023.37 and 8,862.42

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Solution

The fourth proportional to 15,234.30, 21,023.37 and 8,862.42 is: 12,230.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,234.30 : 21,023.37 = 8,862.42 : x
  2. Step 2: Convert to fraction form
    15,234.30/21,023.37 = 8,862.42/x
  3. Step 3: Cross multiply
    15,234.30x = 21,023.37 × 8,862.42
  4. Step 4: Simplify right side
    15,234.30x = 186,317,934.76
  5. Step 5: Solve for x
    x = 186,317,934.76/15,234.30
  6. Step 6: Final answer
    x = 12,230.16

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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.