Home / 9,284.40-13,830.12-8,781.39

Finding the Fourth Proportional to 9,284.40, 13,830.12 and 8,781.39

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Solution

The fourth proportional to 9,284.40, 13,830.12 and 8,781.39 is: 13,080.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,284.40 : 13,830.12 = 8,781.39 : x
  2. Step 2: Convert to fraction form
    9,284.40/13,830.12 = 8,781.39/x
  3. Step 3: Cross multiply
    9,284.40x = 13,830.12 × 8,781.39
  4. Step 4: Simplify right side
    9,284.40x = 121,447,677.47
  5. Step 5: Solve for x
    x = 121,447,677.47/9,284.40
  6. Step 6: Final answer
    x = 13,080.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.