Home / 18,742.89-25,865.22-10,359.39

Finding the Fourth Proportional to 18,742.89, 25,865.22 and 10,359.39

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Solution

The fourth proportional to 18,742.89, 25,865.22 and 10,359.39 is: 14,295.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,742.89 : 25,865.22 = 10,359.39 : x
  2. Step 2: Convert to fraction form
    18,742.89/25,865.22 = 10,359.39/x
  3. Step 3: Cross multiply
    18,742.89x = 25,865.22 × 10,359.39
  4. Step 4: Simplify right side
    18,742.89x = 267,947,901.42
  5. Step 5: Solve for x
    x = 267,947,901.42/18,742.89
  6. Step 6: Final answer
    x = 14,295.98

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1.5x scale

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.