Home / 7,924.32-11,869.46-5,142.87

Finding the Fourth Proportional to 7,924.32, 11,869.46 and 5,142.87

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Solution

The fourth proportional to 7,924.32, 11,869.46 and 5,142.87 is: 7,703.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,924.32 : 11,869.46 = 5,142.87 : x
  2. Step 2: Convert to fraction form
    7,924.32/11,869.46 = 5,142.87/x
  3. Step 3: Cross multiply
    7,924.32x = 11,869.46 × 5,142.87
  4. Step 4: Simplify right side
    7,924.32x = 61,043,064.04
  5. Step 5: Solve for x
    x = 61,043,064.04/7,924.32
  6. Step 6: Final answer
    x = 7,703.26

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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.