Home / 7,872.08-10,862.34-4,335.51

Finding the Fourth Proportional to 7,872.08, 10,862.34 and 4,335.51

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Solution

The fourth proportional to 7,872.08, 10,862.34 and 4,335.51 is: 5,982.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872.08 : 10,862.34 = 4,335.51 : x
  2. Step 2: Convert to fraction form
    7,872.08/10,862.34 = 4,335.51/x
  3. Step 3: Cross multiply
    7,872.08x = 10,862.34 × 4,335.51
  4. Step 4: Simplify right side
    7,872.08x = 47,093,783.69
  5. Step 5: Solve for x
    x = 47,093,783.69/7,872.08
  6. Step 6: Final answer
    x = 5,982.39

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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.