Home / 12,498.12-18,740.16-4,173.75

Finding the Fourth Proportional to 12,498.12, 18,740.16 and 4,173.75

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Solution

The fourth proportional to 12,498.12, 18,740.16 and 4,173.75 is: 6,258.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,498.12 : 18,740.16 = 4,173.75 : x
  2. Step 2: Convert to fraction form
    12,498.12/18,740.16 = 4,173.75/x
  3. Step 3: Cross multiply
    12,498.12x = 18,740.16 × 4,173.75
  4. Step 4: Simplify right side
    12,498.12x = 78,216,742.80
  5. Step 5: Solve for x
    x = 78,216,742.80/12,498.12
  6. Step 6: Final answer
    x = 6,258.28

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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.