Home / 13,691.30-18,894.26-8,030.37

Finding the Fourth Proportional to 13,691.30, 18,894.26 and 8,030.37

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Solution

The fourth proportional to 13,691.30, 18,894.26 and 8,030.37 is: 11,082.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,691.30 : 18,894.26 = 8,030.37 : x
  2. Step 2: Convert to fraction form
    13,691.30/18,894.26 = 8,030.37/x
  3. Step 3: Cross multiply
    13,691.30x = 18,894.26 × 8,030.37
  4. Step 4: Simplify right side
    13,691.30x = 151,727,989.61
  5. Step 5: Solve for x
    x = 151,727,989.61/13,691.30
  6. Step 6: Final answer
    x = 11,082.08

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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.