Home / 26,720.56-40,079.58-9,190.72

Finding the Fourth Proportional to 26,720.56, 40,079.58 and 9,190.72

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Solution

The fourth proportional to 26,720.56, 40,079.58 and 9,190.72 is: 13,785.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,720.56 : 40,079.58 = 9,190.72 : x
  2. Step 2: Convert to fraction form
    26,720.56/40,079.58 = 9,190.72/x
  3. Step 3: Cross multiply
    26,720.56x = 40,079.58 × 9,190.72
  4. Step 4: Simplify right side
    26,720.56x = 368,360,197.50
  5. Step 5: Solve for x
    x = 368,360,197.50/26,720.56
  6. Step 6: Final answer
    x = 13,785.65

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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.