Home / 9,040.89-12,477.87-6,912.32

Finding the Fourth Proportional to 9,040.89, 12,477.87 and 6,912.32

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Solution

The fourth proportional to 9,040.89, 12,477.87 and 6,912.32 is: 9,540.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,040.89 : 12,477.87 = 6,912.32 : x
  2. Step 2: Convert to fraction form
    9,040.89/12,477.87 = 6,912.32/x
  3. Step 3: Cross multiply
    9,040.89x = 12,477.87 × 6,912.32
  4. Step 4: Simplify right side
    9,040.89x = 86,251,061.55
  5. Step 5: Solve for x
    x = 86,251,061.55/9,040.89
  6. Step 6: Final answer
    x = 9,540.11

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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.