Home / 9,402.25-12,975.11-5,153.45

Finding the Fourth Proportional to 9,402.25, 12,975.11 and 5,153.45

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Solution

The fourth proportional to 9,402.25, 12,975.11 and 5,153.45 is: 7,111.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,402.25 : 12,975.11 = 5,153.45 : x
  2. Step 2: Convert to fraction form
    9,402.25/12,975.11 = 5,153.45/x
  3. Step 3: Cross multiply
    9,402.25x = 12,975.11 × 5,153.45
  4. Step 4: Simplify right side
    9,402.25x = 66,866,522.42
  5. Step 5: Solve for x
    x = 66,866,522.42/9,402.25
  6. Step 6: Final answer
    x = 7,111.76

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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.