Home / 7,872.05-10,863.51-4,335.59

Finding the Fourth Proportional to 7,872.05, 10,863.51 and 4,335.59

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Solution

The fourth proportional to 7,872.05, 10,863.51 and 4,335.59 is: 5,983.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872.05 : 10,863.51 = 4,335.59 : x
  2. Step 2: Convert to fraction form
    7,872.05/10,863.51 = 4,335.59/x
  3. Step 3: Cross multiply
    7,872.05x = 10,863.51 × 4,335.59
  4. Step 4: Simplify right side
    7,872.05x = 47,099,725.32
  5. Step 5: Solve for x
    x = 47,099,725.32/7,872.05
  6. Step 6: Final answer
    x = 5,983.16

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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.