Home / 8,531.43-11,768.40-5,878.68

Finding the Fourth Proportional to 8,531.43, 11,768.40 and 5,878.68

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Solution

The fourth proportional to 8,531.43, 11,768.40 and 5,878.68 is: 8,109.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.43 : 11,768.40 = 5,878.68 : x
  2. Step 2: Convert to fraction form
    8,531.43/11,768.40 = 5,878.68/x
  3. Step 3: Cross multiply
    8,531.43x = 11,768.40 × 5,878.68
  4. Step 4: Simplify right side
    8,531.43x = 69,182,657.71
  5. Step 5: Solve for x
    x = 69,182,657.71/8,531.43
  6. Step 6: Final answer
    x = 8,109.15

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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.