Home / 18,538.60-25,583.08-10,040.72

Finding the Fourth Proportional to 18,538.60, 25,583.08 and 10,040.72

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Solution

The fourth proportional to 18,538.60, 25,583.08 and 10,040.72 is: 13,856.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.60 : 25,583.08 = 10,040.72 : x
  2. Step 2: Convert to fraction form
    18,538.60/25,583.08 = 10,040.72/x
  3. Step 3: Cross multiply
    18,538.60x = 25,583.08 × 10,040.72
  4. Step 4: Simplify right side
    18,538.60x = 256,872,543.02
  5. Step 5: Solve for x
    x = 256,872,543.02/18,538.60
  6. Step 6: Final answer
    x = 13,856.09

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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.