Home / 13,101.03-18,079.88-7,132.91

Finding the Fourth Proportional to 13,101.03, 18,079.88 and 7,132.91

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Solution

The fourth proportional to 13,101.03, 18,079.88 and 7,132.91 is: 9,843.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101.03 : 18,079.88 = 7,132.91 : x
  2. Step 2: Convert to fraction form
    13,101.03/18,079.88 = 7,132.91/x
  3. Step 3: Cross multiply
    13,101.03x = 18,079.88 × 7,132.91
  4. Step 4: Simplify right side
    13,101.03x = 128,962,030.79
  5. Step 5: Solve for x
    x = 128,962,030.79/13,101.03
  6. Step 6: Final answer
    x = 9,843.66

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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.