Home / 10,557.87-15,837.05-5,011.79

Finding the Fourth Proportional to 10,557.87, 15,837.05 and 5,011.79

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Solution

The fourth proportional to 10,557.87, 15,837.05 and 5,011.79 is: 7,517.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,557.87 : 15,837.05 = 5,011.79 : x
  2. Step 2: Convert to fraction form
    10,557.87/15,837.05 = 5,011.79/x
  3. Step 3: Cross multiply
    10,557.87x = 15,837.05 × 5,011.79
  4. Step 4: Simplify right side
    10,557.87x = 79,371,864.58
  5. Step 5: Solve for x
    x = 79,371,864.58/10,557.87
  6. Step 6: Final answer
    x = 7,517.79

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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.