Home / 10,387.38-15,556.23-5,991.51

Finding the Fourth Proportional to 10,387.38, 15,556.23 and 5,991.51

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Solution

The fourth proportional to 10,387.38, 15,556.23 and 5,991.51 is: 8,972.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,387.38 : 15,556.23 = 5,991.51 : x
  2. Step 2: Convert to fraction form
    10,387.38/15,556.23 = 5,991.51/x
  3. Step 3: Cross multiply
    10,387.38x = 15,556.23 × 5,991.51
  4. Step 4: Simplify right side
    10,387.38x = 93,205,307.61
  5. Step 5: Solve for x
    x = 93,205,307.61/10,387.38
  6. Step 6: Final answer
    x = 8,972.94

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1.5x scale

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.