Home / 18,449.64-25,430.76-12,479.13

Finding the Fourth Proportional to 18,449.64, 25,430.76 and 12,479.13

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Solution

The fourth proportional to 18,449.64, 25,430.76 and 12,479.13 is: 17,201.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,449.64 : 25,430.76 = 12,479.13 : x
  2. Step 2: Convert to fraction form
    18,449.64/25,430.76 = 12,479.13/x
  3. Step 3: Cross multiply
    18,449.64x = 25,430.76 × 12,479.13
  4. Step 4: Simplify right side
    18,449.64x = 317,353,760.04
  5. Step 5: Solve for x
    x = 317,353,760.04/18,449.64
  6. Step 6: Final answer
    x = 17,201.08

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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.