Home / 12,070.56-18,108.48-3,751.20

Finding the Fourth Proportional to 12,070.56, 18,108.48 and 3,751.20

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Solution

The fourth proportional to 12,070.56, 18,108.48 and 3,751.20 is: 5,627.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,070.56 : 18,108.48 = 3,751.20 : x
  2. Step 2: Convert to fraction form
    12,070.56/18,108.48 = 3,751.20/x
  3. Step 3: Cross multiply
    12,070.56x = 18,108.48 × 3,751.20
  4. Step 4: Simplify right side
    12,070.56x = 67,928,530.18
  5. Step 5: Solve for x
    x = 67,928,530.18/12,070.56
  6. Step 6: Final answer
    x = 5,627.62

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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.