Home / 11,275.84-16,905.60-3,480.16

Finding the Fourth Proportional to 11,275.84, 16,905.60 and 3,480.16

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Solution

The fourth proportional to 11,275.84, 16,905.60 and 3,480.16 is: 5,217.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.84 : 16,905.60 = 3,480.16 : x
  2. Step 2: Convert to fraction form
    11,275.84/16,905.60 = 3,480.16/x
  3. Step 3: Cross multiply
    11,275.84x = 16,905.60 × 3,480.16
  4. Step 4: Simplify right side
    11,275.84x = 58,834,192.90
  5. Step 5: Solve for x
    x = 58,834,192.90/11,275.84
  6. Step 6: Final answer
    x = 5,217.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.