Home / 26,719.56-40,078.08-9,189.72

Finding the Fourth Proportional to 26,719.56, 40,078.08 and 9,189.72

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Solution

The fourth proportional to 26,719.56, 40,078.08 and 9,189.72 is: 13,784.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,719.56 : 40,078.08 = 9,189.72 : x
  2. Step 2: Convert to fraction form
    26,719.56/40,078.08 = 9,189.72/x
  3. Step 3: Cross multiply
    26,719.56x = 40,078.08 × 9,189.72
  4. Step 4: Simplify right side
    26,719.56x = 368,306,333.34
  5. Step 5: Solve for x
    x = 368,306,333.34/26,719.56
  6. Step 6: Final answer
    x = 13,784.15

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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.