Home / 7,426.32-11,139.46-3,423.24

Finding the Fourth Proportional to 7,426.32, 11,139.46 and 3,423.24

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Solution

The fourth proportional to 7,426.32, 11,139.46 and 3,423.24 is: 5,134.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,426.32 : 11,139.46 = 3,423.24 : x
  2. Step 2: Convert to fraction form
    7,426.32/11,139.46 = 3,423.24/x
  3. Step 3: Cross multiply
    7,426.32x = 11,139.46 × 3,423.24
  4. Step 4: Simplify right side
    7,426.32x = 38,133,045.05
  5. Step 5: Solve for x
    x = 38,133,045.05/7,426.32
  6. Step 6: Final answer
    x = 5,134.85

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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.