Home / 7,555.52-10,428.68-4,902.78

Finding the Fourth Proportional to 7,555.52, 10,428.68 and 4,902.78

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Solution

The fourth proportional to 7,555.52, 10,428.68 and 4,902.78 is: 6,767.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,555.52 : 10,428.68 = 4,902.78 : x
  2. Step 2: Convert to fraction form
    7,555.52/10,428.68 = 4,902.78/x
  3. Step 3: Cross multiply
    7,555.52x = 10,428.68 × 4,902.78
  4. Step 4: Simplify right side
    7,555.52x = 51,129,523.73
  5. Step 5: Solve for x
    x = 51,129,523.73/7,555.52
  6. Step 6: Final answer
    x = 6,767.17

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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.