Home / 18,631.75-25,712.15-10,134.06

Finding the Fourth Proportional to 18,631.75, 25,712.15 and 10,134.06

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Solution

The fourth proportional to 18,631.75, 25,712.15 and 10,134.06 is: 13,985.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.75 : 25,712.15 = 10,134.06 : x
  2. Step 2: Convert to fraction form
    18,631.75/25,712.15 = 10,134.06/x
  3. Step 3: Cross multiply
    18,631.75x = 25,712.15 × 10,134.06
  4. Step 4: Simplify right side
    18,631.75x = 260,568,458.16
  5. Step 5: Solve for x
    x = 260,568,458.16/18,631.75
  6. Step 6: Final answer
    x = 13,985.18

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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.