Home / 14,521.30-21,752.76-12,290.56

Finding the Fourth Proportional to 14,521.30, 21,752.76 and 12,290.56

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Solution

The fourth proportional to 14,521.30, 21,752.76 and 12,290.56 is: 18,411.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,521.30 : 21,752.76 = 12,290.56 : x
  2. Step 2: Convert to fraction form
    14,521.30/21,752.76 = 12,290.56/x
  3. Step 3: Cross multiply
    14,521.30x = 21,752.76 × 12,290.56
  4. Step 4: Simplify right side
    14,521.30x = 267,353,601.95
  5. Step 5: Solve for x
    x = 267,353,601.95/14,521.30
  6. Step 6: Final answer
    x = 18,411.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.