Home / 12,480.15-18,713.96-4,157.24

Finding the Fourth Proportional to 12,480.15, 18,713.96 and 4,157.24

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Solution

The fourth proportional to 12,480.15, 18,713.96 and 4,157.24 is: 6,233.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480.15 : 18,713.96 = 4,157.24 : x
  2. Step 2: Convert to fraction form
    12,480.15/18,713.96 = 4,157.24/x
  3. Step 3: Cross multiply
    12,480.15x = 18,713.96 × 4,157.24
  4. Step 4: Simplify right side
    12,480.15x = 77,798,319.11
  5. Step 5: Solve for x
    x = 77,798,319.11/12,480.15
  6. Step 6: Final answer
    x = 6,233.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.