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Finding the Fourth Proportional to 7,557, 10,428.68 and 4,199.72

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Solution

The fourth proportional to 7,557, 10,428.68 and 4,199.72 is: 5,795.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,557 : 10,428.68 = 4,199.72 : x
  2. Step 2: Convert to fraction form
    7,557/10,428.68 = 4,199.72/x
  3. Step 3: Cross multiply
    7,557x = 10,428.68 × 4,199.72
  4. Step 4: Simplify right side
    7,557x = 43,797,535.97
  5. Step 5: Solve for x
    x = 43,797,535.97/7,557
  6. Step 6: Final answer
    x = 5,795.62

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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.