Home / 9,331.16-12,878.68-5,353.59

Finding the Fourth Proportional to 9,331.16, 12,878.68 and 5,353.59

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Solution

The fourth proportional to 9,331.16, 12,878.68 and 5,353.59 is: 7,388.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,331.16 : 12,878.68 = 5,353.59 : x
  2. Step 2: Convert to fraction form
    9,331.16/12,878.68 = 5,353.59/x
  3. Step 3: Cross multiply
    9,331.16x = 12,878.68 × 5,353.59
  4. Step 4: Simplify right side
    9,331.16x = 68,947,172.46
  5. Step 5: Solve for x
    x = 68,947,172.46/9,331.16
  6. Step 6: Final answer
    x = 7,388.92

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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.