Home / 10,082.70-13,925.82-6,720

Finding the Fourth Proportional to 10,082.70, 13,925.82 and 6,720

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Solution

The fourth proportional to 10,082.70, 13,925.82 and 6,720 is: 9,281.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,082.70 : 13,925.82 = 6,720 : x
  2. Step 2: Convert to fraction form
    10,082.70/13,925.82 = 6,720/x
  3. Step 3: Cross multiply
    10,082.70x = 13,925.82 × 6,720
  4. Step 4: Simplify right side
    10,082.70x = 93,581,510.40
  5. Step 5: Solve for x
    x = 93,581,510.40/10,082.70
  6. Step 6: Final answer
    x = 9,281.39

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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.