Home / 10,158.03-15,235.47-3,920.97

Finding the Fourth Proportional to 10,158.03, 15,235.47 and 3,920.97

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Solution

The fourth proportional to 10,158.03, 15,235.47 and 3,920.97 is: 5,880.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,158.03 : 15,235.47 = 3,920.97 : x
  2. Step 2: Convert to fraction form
    10,158.03/15,235.47 = 3,920.97/x
  3. Step 3: Cross multiply
    10,158.03x = 15,235.47 × 3,920.97
  4. Step 4: Simplify right side
    10,158.03x = 59,737,820.81
  5. Step 5: Solve for x
    x = 59,737,820.81/10,158.03
  6. Step 6: Final answer
    x = 5,880.85

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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.