Home / 18,538.74-25,583.45-10,040.90

Finding the Fourth Proportional to 18,538.74, 25,583.45 and 10,040.90

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Solution

The fourth proportional to 18,538.74, 25,583.45 and 10,040.90 is: 13,856.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.74 : 25,583.45 = 10,040.90 : x
  2. Step 2: Convert to fraction form
    18,538.74/25,583.45 = 10,040.90/x
  3. Step 3: Cross multiply
    18,538.74x = 25,583.45 × 10,040.90
  4. Step 4: Simplify right side
    18,538.74x = 256,880,684.98
  5. Step 5: Solve for x
    x = 256,880,684.98/18,538.74
  6. Step 6: Final answer
    x = 13,856.43

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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.