Home / 7,872.81-10,864.97-4,336.02

Finding the Fourth Proportional to 7,872.81, 10,864.97 and 4,336.02

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Solution

The fourth proportional to 7,872.81, 10,864.97 and 4,336.02 is: 5,983.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872.81 : 10,864.97 = 4,336.02 : x
  2. Step 2: Convert to fraction form
    7,872.81/10,864.97 = 4,336.02/x
  3. Step 3: Cross multiply
    7,872.81x = 10,864.97 × 4,336.02
  4. Step 4: Simplify right side
    7,872.81x = 47,110,721.80
  5. Step 5: Solve for x
    x = 47,110,721.80/7,872.81
  6. Step 6: Final answer
    x = 5,983.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.