Home / 10,197.98-15,298.49-3,178.65

Finding the Fourth Proportional to 10,197.98, 15,298.49 and 3,178.65

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Solution

The fourth proportional to 10,197.98, 15,298.49 and 3,178.65 is: 4,768.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,197.98 : 15,298.49 = 3,178.65 : x
  2. Step 2: Convert to fraction form
    10,197.98/15,298.49 = 3,178.65/x
  3. Step 3: Cross multiply
    10,197.98x = 15,298.49 × 3,178.65
  4. Step 4: Simplify right side
    10,197.98x = 48,628,545.24
  5. Step 5: Solve for x
    x = 48,628,545.24/10,197.98
  6. Step 6: Final answer
    x = 4,768.45

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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.