Home / 18,507.12-25,540.20-10,124.16

Finding the Fourth Proportional to 18,507.12, 25,540.20 and 10,124.16

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Solution

The fourth proportional to 18,507.12, 25,540.20 and 10,124.16 is: 13,971.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,507.12 : 25,540.20 = 10,124.16 : x
  2. Step 2: Convert to fraction form
    18,507.12/25,540.20 = 10,124.16/x
  3. Step 3: Cross multiply
    18,507.12x = 25,540.20 × 10,124.16
  4. Step 4: Simplify right side
    18,507.12x = 258,573,071.23
  5. Step 5: Solve for x
    x = 258,573,071.23/18,507.12
  6. Step 6: Final answer
    x = 13,971.55

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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.