Home / 13,348.17-18,419.94-8,312.04

Finding the Fourth Proportional to 13,348.17, 18,419.94 and 8,312.04

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Solution

The fourth proportional to 13,348.17, 18,419.94 and 8,312.04 is: 11,470.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.17 : 18,419.94 = 8,312.04 : x
  2. Step 2: Convert to fraction form
    13,348.17/18,419.94 = 8,312.04/x
  3. Step 3: Cross multiply
    13,348.17x = 18,419.94 × 8,312.04
  4. Step 4: Simplify right side
    13,348.17x = 153,107,278.08
  5. Step 5: Solve for x
    x = 153,107,278.08/13,348.17
  6. Step 6: Final answer
    x = 11,470.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.