Home / 8,878.39-13,316.67-5,581.49

Finding the Fourth Proportional to 8,878.39, 13,316.67 and 5,581.49

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Solution

The fourth proportional to 8,878.39, 13,316.67 and 5,581.49 is: 8,371.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.39 : 13,316.67 = 5,581.49 : x
  2. Step 2: Convert to fraction form
    8,878.39/13,316.67 = 5,581.49/x
  3. Step 3: Cross multiply
    8,878.39x = 13,316.67 × 5,581.49
  4. Step 4: Simplify right side
    8,878.39x = 74,326,841.10
  5. Step 5: Solve for x
    x = 74,326,841.10/8,878.39
  6. Step 6: Final answer
    x = 8,371.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.