Home / 8,921.59-13,383.05-2,681.11

Finding the Fourth Proportional to 8,921.59, 13,383.05 and 2,681.11

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Solution

The fourth proportional to 8,921.59, 13,383.05 and 2,681.11 is: 4,021.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.59 : 13,383.05 = 2,681.11 : x
  2. Step 2: Convert to fraction form
    8,921.59/13,383.05 = 2,681.11/x
  3. Step 3: Cross multiply
    8,921.59x = 13,383.05 × 2,681.11
  4. Step 4: Simplify right side
    8,921.59x = 35,881,368.97
  5. Step 5: Solve for x
    x = 35,881,368.97/8,921.59
  6. Step 6: Final answer
    x = 4,021.86

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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.