Home / 8,261.84-11,397.36-5,428.04

Finding the Fourth Proportional to 8,261.84, 11,397.36 and 5,428.04

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Solution

The fourth proportional to 8,261.84, 11,397.36 and 5,428.04 is: 7,488.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.84 : 11,397.36 = 5,428.04 : x
  2. Step 2: Convert to fraction form
    8,261.84/11,397.36 = 5,428.04/x
  3. Step 3: Cross multiply
    8,261.84x = 11,397.36 × 5,428.04
  4. Step 4: Simplify right side
    8,261.84x = 61,865,325.97
  5. Step 5: Solve for x
    x = 61,865,325.97/8,261.84
  6. Step 6: Final answer
    x = 7,488.08

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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.