Home / 10,078.16-15,122.43-4,159.46

Finding the Fourth Proportional to 10,078.16, 15,122.43 and 4,159.46

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Solution

The fourth proportional to 10,078.16, 15,122.43 and 4,159.46 is: 6,241.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078.16 : 15,122.43 = 4,159.46 : x
  2. Step 2: Convert to fraction form
    10,078.16/15,122.43 = 4,159.46/x
  3. Step 3: Cross multiply
    10,078.16x = 15,122.43 × 4,159.46
  4. Step 4: Simplify right side
    10,078.16x = 62,901,142.69
  5. Step 5: Solve for x
    x = 62,901,142.69/10,078.16
  6. Step 6: Final answer
    x = 6,241.33

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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.