Home / 10,208.91-15,298.98-8,119.65

Finding the Fourth Proportional to 10,208.91, 15,298.98 and 8,119.65

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Solution

The fourth proportional to 10,208.91, 15,298.98 and 8,119.65 is: 12,168.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,208.91 : 15,298.98 = 8,119.65 : x
  2. Step 2: Convert to fraction form
    10,208.91/15,298.98 = 8,119.65/x
  3. Step 3: Cross multiply
    10,208.91x = 15,298.98 × 8,119.65
  4. Step 4: Simplify right side
    10,208.91x = 124,222,362.96
  5. Step 5: Solve for x
    x = 124,222,362.96/10,208.91
  6. Step 6: Final answer
    x = 12,168.03

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1.5x scale

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.