Home / 12,074.35-18,116.50-5,316.46

Finding the Fourth Proportional to 12,074.35, 18,116.50 and 5,316.46

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Solution

The fourth proportional to 12,074.35, 18,116.50 and 5,316.46 is: 7,976.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,074.35 : 18,116.50 = 5,316.46 : x
  2. Step 2: Convert to fraction form
    12,074.35/18,116.50 = 5,316.46/x
  3. Step 3: Cross multiply
    12,074.35x = 18,116.50 × 5,316.46
  4. Step 4: Simplify right side
    12,074.35x = 96,315,647.59
  5. Step 5: Solve for x
    x = 96,315,647.59/12,074.35
  6. Step 6: Final answer
    x = 7,976.88

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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.