Home / 14,079.51-19,433.87-8,115.38

Finding the Fourth Proportional to 14,079.51, 19,433.87 and 8,115.38

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Solution

The fourth proportional to 14,079.51, 19,433.87 and 8,115.38 is: 11,201.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.51 : 19,433.87 = 8,115.38 : x
  2. Step 2: Convert to fraction form
    14,079.51/19,433.87 = 8,115.38/x
  3. Step 3: Cross multiply
    14,079.51x = 19,433.87 × 8,115.38
  4. Step 4: Simplify right side
    14,079.51x = 157,713,102.17
  5. Step 5: Solve for x
    x = 157,713,102.17/14,079.51
  6. Step 6: Final answer
    x = 11,201.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.