Home / 8,681.04-11,968.56-5,531.76

Finding the Fourth Proportional to 8,681.04, 11,968.56 and 5,531.76

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Solution

The fourth proportional to 8,681.04, 11,968.56 and 5,531.76 is: 7,626.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.04 : 11,968.56 = 5,531.76 : x
  2. Step 2: Convert to fraction form
    8,681.04/11,968.56 = 5,531.76/x
  3. Step 3: Cross multiply
    8,681.04x = 11,968.56 × 5,531.76
  4. Step 4: Simplify right side
    8,681.04x = 66,207,201.47
  5. Step 5: Solve for x
    x = 66,207,201.47/8,681.04
  6. Step 6: Final answer
    x = 7,626.64

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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.