Home / 15,312.20-22,956.15-8,386.70

Finding the Fourth Proportional to 15,312.20, 22,956.15 and 8,386.70

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Solution

The fourth proportional to 15,312.20, 22,956.15 and 8,386.70 is: 12,573.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312.20 : 22,956.15 = 8,386.70 : x
  2. Step 2: Convert to fraction form
    15,312.20/22,956.15 = 8,386.70/x
  3. Step 3: Cross multiply
    15,312.20x = 22,956.15 × 8,386.70
  4. Step 4: Simplify right side
    15,312.20x = 192,526,343.21
  5. Step 5: Solve for x
    x = 192,526,343.21/15,312.20
  6. Step 6: Final answer
    x = 12,573.40

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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.