Home / 15,386.40-22,974.72-12,230.88

Finding the Fourth Proportional to 15,386.40, 22,974.72 and 12,230.88

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Solution

The fourth proportional to 15,386.40, 22,974.72 and 12,230.88 is: 18,262.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,386.40 : 22,974.72 = 12,230.88 : x
  2. Step 2: Convert to fraction form
    15,386.40/22,974.72 = 12,230.88/x
  3. Step 3: Cross multiply
    15,386.40x = 22,974.72 × 12,230.88
  4. Step 4: Simplify right side
    15,386.40x = 281,001,043.35
  5. Step 5: Solve for x
    x = 281,001,043.35/15,386.40
  6. Step 6: Final answer
    x = 18,262.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.