Home / 18,276.16-25,221.12-10,318.21

Finding the Fourth Proportional to 18,276.16, 25,221.12 and 10,318.21

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Solution

The fourth proportional to 18,276.16, 25,221.12 and 10,318.21 is: 14,239.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276.16 : 25,221.12 = 10,318.21 : x
  2. Step 2: Convert to fraction form
    18,276.16/25,221.12 = 10,318.21/x
  3. Step 3: Cross multiply
    18,276.16x = 25,221.12 × 10,318.21
  4. Step 4: Simplify right side
    18,276.16x = 260,236,761.00
  5. Step 5: Solve for x
    x = 260,236,761.00/18,276.16
  6. Step 6: Final answer
    x = 14,239.14

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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.