Home / 9,030.90-12,475.05-8,192.55

Finding the Fourth Proportional to 9,030.90, 12,475.05 and 8,192.55

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Solution

The fourth proportional to 9,030.90, 12,475.05 and 8,192.55 is: 11,316.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,030.90 : 12,475.05 = 8,192.55 : x
  2. Step 2: Convert to fraction form
    9,030.90/12,475.05 = 8,192.55/x
  3. Step 3: Cross multiply
    9,030.90x = 12,475.05 × 8,192.55
  4. Step 4: Simplify right side
    9,030.90x = 102,202,470.88
  5. Step 5: Solve for x
    x = 102,202,470.88/9,030.90
  6. Step 6: Final answer
    x = 11,316.98

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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.