Home / 9,171.90-12,657.02-5,394.33

Finding the Fourth Proportional to 9,171.90, 12,657.02 and 5,394.33

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Solution

The fourth proportional to 9,171.90, 12,657.02 and 5,394.33 is: 7,444.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,171.90 : 12,657.02 = 5,394.33 : x
  2. Step 2: Convert to fraction form
    9,171.90/12,657.02 = 5,394.33/x
  3. Step 3: Cross multiply
    9,171.90x = 12,657.02 × 5,394.33
  4. Step 4: Simplify right side
    9,171.90x = 68,276,115.72
  5. Step 5: Solve for x
    x = 68,276,115.72/9,171.90
  6. Step 6: Final answer
    x = 7,444.05

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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.