Home / 9,897.84-13,660.20-5,706

Finding the Fourth Proportional to 9,897.84, 13,660.20 and 5,706

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Solution

The fourth proportional to 9,897.84, 13,660.20 and 5,706 is: 7,874.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,897.84 : 13,660.20 = 5,706 : x
  2. Step 2: Convert to fraction form
    9,897.84/13,660.20 = 5,706/x
  3. Step 3: Cross multiply
    9,897.84x = 13,660.20 × 5,706
  4. Step 4: Simplify right side
    9,897.84x = 77,945,101.20
  5. Step 5: Solve for x
    x = 77,945,101.20/9,897.84
  6. Step 6: Final answer
    x = 7,874.96

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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.