Home / 9,360.46-12,918.20-5,328.55

Finding the Fourth Proportional to 9,360.46, 12,918.20 and 5,328.55

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Solution

The fourth proportional to 9,360.46, 12,918.20 and 5,328.55 is: 7,353.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,360.46 : 12,918.20 = 5,328.55 : x
  2. Step 2: Convert to fraction form
    9,360.46/12,918.20 = 5,328.55/x
  3. Step 3: Cross multiply
    9,360.46x = 12,918.20 × 5,328.55
  4. Step 4: Simplify right side
    9,360.46x = 68,835,274.61
  5. Step 5: Solve for x
    x = 68,835,274.61/9,360.46
  6. Step 6: Final answer
    x = 7,353.83

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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.