Home / 18,447.22-25,426.80-13,071.46

Finding the Fourth Proportional to 18,447.22, 25,426.80 and 13,071.46

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Solution

The fourth proportional to 18,447.22, 25,426.80 and 13,071.46 is: 18,017.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,447.22 : 25,426.80 = 13,071.46 : x
  2. Step 2: Convert to fraction form
    18,447.22/25,426.80 = 13,071.46/x
  3. Step 3: Cross multiply
    18,447.22x = 25,426.80 × 13,071.46
  4. Step 4: Simplify right side
    18,447.22x = 332,365,399.13
  5. Step 5: Solve for x
    x = 332,365,399.13/18,447.22
  6. Step 6: Final answer
    x = 18,017.10

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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.