Home / 7,013.12-9,677.43-3,869.10

Finding the Fourth Proportional to 7,013.12, 9,677.43 and 3,869.10

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Solution

The fourth proportional to 7,013.12, 9,677.43 and 3,869.10 is: 5,338.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,013.12 : 9,677.43 = 3,869.10 : x
  2. Step 2: Convert to fraction form
    7,013.12/9,677.43 = 3,869.10/x
  3. Step 3: Cross multiply
    7,013.12x = 9,677.43 × 3,869.10
  4. Step 4: Simplify right side
    7,013.12x = 37,442,925.07
  5. Step 5: Solve for x
    x = 37,442,925.07/7,013.12
  6. Step 6: Final answer
    x = 5,338.99

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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.