Home / 26,869.16-40,303.68-7,147.72

Finding the Fourth Proportional to 26,869.16, 40,303.68 and 7,147.72

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Solution

The fourth proportional to 26,869.16, 40,303.68 and 7,147.72 is: 10,721.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,869.16 : 40,303.68 = 7,147.72 : x
  2. Step 2: Convert to fraction form
    26,869.16/40,303.68 = 7,147.72/x
  3. Step 3: Cross multiply
    26,869.16x = 40,303.68 × 7,147.72
  4. Step 4: Simplify right side
    26,869.16x = 288,079,419.61
  5. Step 5: Solve for x
    x = 288,079,419.61/26,869.16
  6. Step 6: Final answer
    x = 10,721.56

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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.