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Finding the Fourth Proportional to 7,224.16, 10,826.40 and 6,368.80

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Solution

The fourth proportional to 7,224.16, 10,826.40 and 6,368.80 is: 9,544.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,224.16 : 10,826.40 = 6,368.80 : x
  2. Step 2: Convert to fraction form
    7,224.16/10,826.40 = 6,368.80/x
  3. Step 3: Cross multiply
    7,224.16x = 10,826.40 × 6,368.80
  4. Step 4: Simplify right side
    7,224.16x = 68,951,176.32
  5. Step 5: Solve for x
    x = 68,951,176.32/7,224.16
  6. Step 6: Final answer
    x = 9,544.53

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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.