Home / 9,402.20-12,975.21-5,152.98

Finding the Fourth Proportional to 9,402.20, 12,975.21 and 5,152.98

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Solution

The fourth proportional to 9,402.20, 12,975.21 and 5,152.98 is: 7,111.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,402.20 : 12,975.21 = 5,152.98 : x
  2. Step 2: Convert to fraction form
    9,402.20/12,975.21 = 5,152.98/x
  3. Step 3: Cross multiply
    9,402.20x = 12,975.21 × 5,152.98
  4. Step 4: Simplify right side
    9,402.20x = 66,861,046.28
  5. Step 5: Solve for x
    x = 66,861,046.28/9,402.20
  6. Step 6: Final answer
    x = 7,111.21

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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.