Home / 13,508.20-18,642.26-7,541.04

Finding the Fourth Proportional to 13,508.20, 18,642.26 and 7,541.04

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Solution

The fourth proportional to 13,508.20, 18,642.26 and 7,541.04 is: 10,407.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508.20 : 18,642.26 = 7,541.04 : x
  2. Step 2: Convert to fraction form
    13,508.20/18,642.26 = 7,541.04/x
  3. Step 3: Cross multiply
    13,508.20x = 18,642.26 × 7,541.04
  4. Step 4: Simplify right side
    13,508.20x = 140,582,028.35
  5. Step 5: Solve for x
    x = 140,582,028.35/13,508.20
  6. Step 6: Final answer
    x = 10,407.16

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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.