Home / 17,621.88-26,432.81-5,309.88

Finding the Fourth Proportional to 17,621.88, 26,432.81 and 5,309.88

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Solution

The fourth proportional to 17,621.88, 26,432.81 and 5,309.88 is: 7,964.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,621.88 : 26,432.81 = 5,309.88 : x
  2. Step 2: Convert to fraction form
    17,621.88/26,432.81 = 5,309.88/x
  3. Step 3: Cross multiply
    17,621.88x = 26,432.81 × 5,309.88
  4. Step 4: Simplify right side
    17,621.88x = 140,355,049.16
  5. Step 5: Solve for x
    x = 140,355,049.16/17,621.88
  6. Step 6: Final answer
    x = 7,964.82

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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.