Home / 7,439.30-11,154.71-5,750.09

Finding the Fourth Proportional to 7,439.30, 11,154.71 and 5,750.09

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Solution

The fourth proportional to 7,439.30, 11,154.71 and 5,750.09 is: 8,621.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439.30 : 11,154.71 = 5,750.09 : x
  2. Step 2: Convert to fraction form
    7,439.30/11,154.71 = 5,750.09/x
  3. Step 3: Cross multiply
    7,439.30x = 11,154.71 × 5,750.09
  4. Step 4: Simplify right side
    7,439.30x = 64,140,649.82
  5. Step 5: Solve for x
    x = 64,140,649.82/7,439.30
  6. Step 6: Final answer
    x = 8,621.87

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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.