Home / 13,079.39-18,052.43-8,603.59

Finding the Fourth Proportional to 13,079.39, 18,052.43 and 8,603.59

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Solution

The fourth proportional to 13,079.39, 18,052.43 and 8,603.59 is: 11,874.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.39 : 18,052.43 = 8,603.59 : x
  2. Step 2: Convert to fraction form
    13,079.39/18,052.43 = 8,603.59/x
  3. Step 3: Cross multiply
    13,079.39x = 18,052.43 × 8,603.59
  4. Step 4: Simplify right side
    13,079.39x = 155,315,666.47
  5. Step 5: Solve for x
    x = 155,315,666.47/13,079.39
  6. Step 6: Final answer
    x = 11,874.84

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Similar ratio
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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.