Home / 18,455.20-25,468.12-10,071.72

Finding the Fourth Proportional to 18,455.20, 25,468.12 and 10,071.72

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Solution

The fourth proportional to 18,455.20, 25,468.12 and 10,071.72 is: 13,898.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,455.20 : 25,468.12 = 10,071.72 : x
  2. Step 2: Convert to fraction form
    18,455.20/25,468.12 = 10,071.72/x
  3. Step 3: Cross multiply
    18,455.20x = 25,468.12 × 10,071.72
  4. Step 4: Simplify right side
    18,455.20x = 256,507,773.57
  5. Step 5: Solve for x
    x = 256,507,773.57/18,455.20
  6. Step 6: Final answer
    x = 13,898.94

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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.