Home / 10,387.24-15,579.50-2,891.30

Finding the Fourth Proportional to 10,387.24, 15,579.50 and 2,891.30

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Solution

The fourth proportional to 10,387.24, 15,579.50 and 2,891.30 is: 4,336.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,387.24 : 15,579.50 = 2,891.30 : x
  2. Step 2: Convert to fraction form
    10,387.24/15,579.50 = 2,891.30/x
  3. Step 3: Cross multiply
    10,387.24x = 15,579.50 × 2,891.30
  4. Step 4: Simplify right side
    10,387.24x = 45,044,916.00
  5. Step 5: Solve for x
    x = 45,044,916.00/10,387.24
  6. Step 6: Final answer
    x = 4,336.56

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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.