Home / 13,101.07-18,079.45-7,132.77

Finding the Fourth Proportional to 13,101.07, 18,079.45 and 7,132.77

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Solution

The fourth proportional to 13,101.07, 18,079.45 and 7,132.77 is: 9,843.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101.07 : 18,079.45 = 7,132.77 : x
  2. Step 2: Convert to fraction form
    13,101.07/18,079.45 = 7,132.77/x
  3. Step 3: Cross multiply
    13,101.07x = 18,079.45 × 7,132.77
  4. Step 4: Simplify right side
    13,101.07x = 128,956,468.18
  5. Step 5: Solve for x
    x = 128,956,468.18/13,101.07
  6. Step 6: Final answer
    x = 9,843.20

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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.