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Finding the Fourth Proportional to 12,535.76, 18,803.28 and 4,640.16

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Solution

The fourth proportional to 12,535.76, 18,803.28 and 4,640.16 is: 6,960.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,535.76 : 18,803.28 = 4,640.16 : x
  2. Step 2: Convert to fraction form
    12,535.76/18,803.28 = 4,640.16/x
  3. Step 3: Cross multiply
    12,535.76x = 18,803.28 × 4,640.16
  4. Step 4: Simplify right side
    12,535.76x = 87,250,227.72
  5. Step 5: Solve for x
    x = 87,250,227.72/12,535.76
  6. Step 6: Final answer
    x = 6,960.11

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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.