Home / 13,132.24-18,110.28-10,143.60

Finding the Fourth Proportional to 13,132.24, 18,110.28 and 10,143.60

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Solution

The fourth proportional to 13,132.24, 18,110.28 and 10,143.60 is: 13,988.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.24 : 18,110.28 = 10,143.60 : x
  2. Step 2: Convert to fraction form
    13,132.24/18,110.28 = 10,143.60/x
  3. Step 3: Cross multiply
    13,132.24x = 18,110.28 × 10,143.60
  4. Step 4: Simplify right side
    13,132.24x = 183,703,436.21
  5. Step 5: Solve for x
    x = 183,703,436.21/13,132.24
  6. Step 6: Final answer
    x = 13,988.74

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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.