Home / 13,132.19-18,122.53-7,163.88

Finding the Fourth Proportional to 13,132.19, 18,122.53 and 7,163.88

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Solution

The fourth proportional to 13,132.19, 18,122.53 and 7,163.88 is: 9,886.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.19 : 18,122.53 = 7,163.88 : x
  2. Step 2: Convert to fraction form
    13,132.19/18,122.53 = 7,163.88/x
  3. Step 3: Cross multiply
    13,132.19x = 18,122.53 × 7,163.88
  4. Step 4: Simplify right side
    13,132.19x = 129,827,630.22
  5. Step 5: Solve for x
    x = 129,827,630.22/13,132.19
  6. Step 6: Final answer
    x = 9,886.22

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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.