Home / 16,891.47-25,328.61-5,642.76

Finding the Fourth Proportional to 16,891.47, 25,328.61 and 5,642.76

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Solution

The fourth proportional to 16,891.47, 25,328.61 and 5,642.76 is: 8,461.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,891.47 : 25,328.61 = 5,642.76 : x
  2. Step 2: Convert to fraction form
    16,891.47/25,328.61 = 5,642.76/x
  3. Step 3: Cross multiply
    16,891.47x = 25,328.61 × 5,642.76
  4. Step 4: Simplify right side
    16,891.47x = 142,923,267.36
  5. Step 5: Solve for x
    x = 142,923,267.36/16,891.47
  6. Step 6: Final answer
    x = 8,461.27

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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.