Home / 13,346.95-18,418.79-8,042.79

Finding the Fourth Proportional to 13,346.95, 18,418.79 and 8,042.79

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Solution

The fourth proportional to 13,346.95, 18,418.79 and 8,042.79 is: 11,099.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.95 : 18,418.79 = 8,042.79 : x
  2. Step 2: Convert to fraction form
    13,346.95/18,418.79 = 8,042.79/x
  3. Step 3: Cross multiply
    13,346.95x = 18,418.79 × 8,042.79
  4. Step 4: Simplify right side
    13,346.95x = 148,138,465.86
  5. Step 5: Solve for x
    x = 148,138,465.86/13,346.95
  6. Step 6: Final answer
    x = 11,099.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.