Home / 9,225.78-12,732.63-5,247.48

Finding the Fourth Proportional to 9,225.78, 12,732.63 and 5,247.48

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Solution

The fourth proportional to 9,225.78, 12,732.63 and 5,247.48 is: 7,242.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,225.78 : 12,732.63 = 5,247.48 : x
  2. Step 2: Convert to fraction form
    9,225.78/12,732.63 = 5,247.48/x
  3. Step 3: Cross multiply
    9,225.78x = 12,732.63 × 5,247.48
  4. Step 4: Simplify right side
    9,225.78x = 66,814,221.27
  5. Step 5: Solve for x
    x = 66,814,221.27/9,225.78
  6. Step 6: Final answer
    x = 7,242.12

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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.