Home / 9,346.12-12,897.42-5,154.28

Finding the Fourth Proportional to 9,346.12, 12,897.42 and 5,154.28

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Solution

The fourth proportional to 9,346.12, 12,897.42 and 5,154.28 is: 7,112.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,346.12 : 12,897.42 = 5,154.28 : x
  2. Step 2: Convert to fraction form
    9,346.12/12,897.42 = 5,154.28/x
  3. Step 3: Cross multiply
    9,346.12x = 12,897.42 × 5,154.28
  4. Step 4: Simplify right side
    9,346.12x = 66,476,913.96
  5. Step 5: Solve for x
    x = 66,476,913.96/9,346.12
  6. Step 6: Final answer
    x = 7,112.78

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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.