Home / 10,013.80-15,007.74-6,721.96

Finding the Fourth Proportional to 10,013.80, 15,007.74 and 6,721.96

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Solution

The fourth proportional to 10,013.80, 15,007.74 and 6,721.96 is: 10,074.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,013.80 : 15,007.74 = 6,721.96 : x
  2. Step 2: Convert to fraction form
    10,013.80/15,007.74 = 6,721.96/x
  3. Step 3: Cross multiply
    10,013.80x = 15,007.74 × 6,721.96
  4. Step 4: Simplify right side
    10,013.80x = 100,881,427.97
  5. Step 5: Solve for x
    x = 100,881,427.97/10,013.80
  6. Step 6: Final answer
    x = 10,074.24

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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.