Home / 10,488.12-15,727.06-4,936.80

Finding the Fourth Proportional to 10,488.12, 15,727.06 and 4,936.80

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Solution

The fourth proportional to 10,488.12, 15,727.06 and 4,936.80 is: 7,402.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,488.12 : 15,727.06 = 4,936.80 : x
  2. Step 2: Convert to fraction form
    10,488.12/15,727.06 = 4,936.80/x
  3. Step 3: Cross multiply
    10,488.12x = 15,727.06 × 4,936.80
  4. Step 4: Simplify right side
    10,488.12x = 77,641,349.81
  5. Step 5: Solve for x
    x = 77,641,349.81/10,488.12
  6. Step 6: Final answer
    x = 7,402.79

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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.