Home / 13,447.88-18,557.50-7,480.12

Finding the Fourth Proportional to 13,447.88, 18,557.50 and 7,480.12

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Solution

The fourth proportional to 13,447.88, 18,557.50 and 7,480.12 is: 10,322.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.88 : 18,557.50 = 7,480.12 : x
  2. Step 2: Convert to fraction form
    13,447.88/18,557.50 = 7,480.12/x
  3. Step 3: Cross multiply
    13,447.88x = 18,557.50 × 7,480.12
  4. Step 4: Simplify right side
    13,447.88x = 138,812,326.90
  5. Step 5: Solve for x
    x = 138,812,326.90/13,447.88
  6. Step 6: Final answer
    x = 10,322.25

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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.