Home / 10,122.81-15,181.25-3,547.77

Finding the Fourth Proportional to 10,122.81, 15,181.25 and 3,547.77

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Solution

The fourth proportional to 10,122.81, 15,181.25 and 3,547.77 is: 5,320.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,122.81 : 15,181.25 = 3,547.77 : x
  2. Step 2: Convert to fraction form
    10,122.81/15,181.25 = 3,547.77/x
  3. Step 3: Cross multiply
    10,122.81x = 15,181.25 × 3,547.77
  4. Step 4: Simplify right side
    10,122.81x = 53,859,565.57
  5. Step 5: Solve for x
    x = 53,859,565.57/10,122.81
  6. Step 6: Final answer
    x = 5,320.61

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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.