Home / 18,276.35-25,221.14-10,318.91

Finding the Fourth Proportional to 18,276.35, 25,221.14 and 10,318.91

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Solution

The fourth proportional to 18,276.35, 25,221.14 and 10,318.91 is: 14,239.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276.35 : 25,221.14 = 10,318.91 : x
  2. Step 2: Convert to fraction form
    18,276.35/25,221.14 = 10,318.91/x
  3. Step 3: Cross multiply
    18,276.35x = 25,221.14 × 10,318.91
  4. Step 4: Simplify right side
    18,276.35x = 260,254,496.06
  5. Step 5: Solve for x
    x = 260,254,496.06/18,276.35
  6. Step 6: Final answer
    x = 14,239.96

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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.