Home / 13,447.13-18,549.33-11,165.56

Finding the Fourth Proportional to 13,447.13, 18,549.33 and 11,165.56

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Solution

The fourth proportional to 13,447.13, 18,549.33 and 11,165.56 is: 15,402.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.13 : 18,549.33 = 11,165.56 : x
  2. Step 2: Convert to fraction form
    13,447.13/18,549.33 = 11,165.56/x
  3. Step 3: Cross multiply
    13,447.13x = 18,549.33 × 11,165.56
  4. Step 4: Simplify right side
    13,447.13x = 207,113,657.07
  5. Step 5: Solve for x
    x = 207,113,657.07/13,447.13
  6. Step 6: Final answer
    x = 15,402.07

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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.