Home / 12,387.66-18,581.45-3,027.57

Finding the Fourth Proportional to 12,387.66, 18,581.45 and 3,027.57

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Solution

The fourth proportional to 12,387.66, 18,581.45 and 3,027.57 is: 4,541.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.66 : 18,581.45 = 3,027.57 : x
  2. Step 2: Convert to fraction form
    12,387.66/18,581.45 = 3,027.57/x
  3. Step 3: Cross multiply
    12,387.66x = 18,581.45 × 3,027.57
  4. Step 4: Simplify right side
    12,387.66x = 56,256,640.58
  5. Step 5: Solve for x
    x = 56,256,640.58/12,387.66
  6. Step 6: Final answer
    x = 4,541.35

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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.