Home / 10,890.62-15,033.65-7,358.61

Finding the Fourth Proportional to 10,890.62, 15,033.65 and 7,358.61

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Solution

The fourth proportional to 10,890.62, 15,033.65 and 7,358.61 is: 10,157.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.62 : 15,033.65 = 7,358.61 : x
  2. Step 2: Convert to fraction form
    10,890.62/15,033.65 = 7,358.61/x
  3. Step 3: Cross multiply
    10,890.62x = 15,033.65 × 7,358.61
  4. Step 4: Simplify right side
    10,890.62x = 110,626,730.43
  5. Step 5: Solve for x
    x = 110,626,730.43/10,890.62
  6. Step 6: Final answer
    x = 10,157.99

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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.