Home / 11,552.20-17,312.10-8,085.40

Finding the Fourth Proportional to 11,552.20, 17,312.10 and 8,085.40

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Solution

The fourth proportional to 11,552.20, 17,312.10 and 8,085.40 is: 12,116.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,552.20 : 17,312.10 = 8,085.40 : x
  2. Step 2: Convert to fraction form
    11,552.20/17,312.10 = 8,085.40/x
  3. Step 3: Cross multiply
    11,552.20x = 17,312.10 × 8,085.40
  4. Step 4: Simplify right side
    11,552.20x = 139,975,253.34
  5. Step 5: Solve for x
    x = 139,975,253.34/11,552.20
  6. Step 6: Final answer
    x = 12,116.76

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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.