Home / 15,225.12-22,889.13-12,299.70

Finding the Fourth Proportional to 15,225.12, 22,889.13 and 12,299.70

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Solution

The fourth proportional to 15,225.12, 22,889.13 and 12,299.70 is: 18,491.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,225.12 : 22,889.13 = 12,299.70 : x
  2. Step 2: Convert to fraction form
    15,225.12/22,889.13 = 12,299.70/x
  3. Step 3: Cross multiply
    15,225.12x = 22,889.13 × 12,299.70
  4. Step 4: Simplify right side
    15,225.12x = 281,529,432.26
  5. Step 5: Solve for x
    x = 281,529,432.26/15,225.12
  6. Step 6: Final answer
    x = 18,491.11

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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.