Home / 10,156.16-15,232.65-3,919.09

Finding the Fourth Proportional to 10,156.16, 15,232.65 and 3,919.09

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Solution

The fourth proportional to 10,156.16, 15,232.65 and 3,919.09 is: 5,878.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,156.16 : 15,232.65 = 3,919.09 : x
  2. Step 2: Convert to fraction form
    10,156.16/15,232.65 = 3,919.09/x
  3. Step 3: Cross multiply
    10,156.16x = 15,232.65 × 3,919.09
  4. Step 4: Simplify right side
    10,156.16x = 59,698,126.29
  5. Step 5: Solve for x
    x = 59,698,126.29/10,156.16
  6. Step 6: Final answer
    x = 5,878.02

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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.