Home / 9,351.93-12,905.33-5,160.09

Finding the Fourth Proportional to 9,351.93, 12,905.33 and 5,160.09

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Solution

The fourth proportional to 9,351.93, 12,905.33 and 5,160.09 is: 7,120.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,351.93 : 12,905.33 = 5,160.09 : x
  2. Step 2: Convert to fraction form
    9,351.93/12,905.33 = 5,160.09/x
  3. Step 3: Cross multiply
    9,351.93x = 12,905.33 × 5,160.09
  4. Step 4: Simplify right side
    9,351.93x = 66,592,638.48
  5. Step 5: Solve for x
    x = 66,592,638.48/9,351.93
  6. Step 6: Final answer
    x = 7,120.74

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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.