Home / 14,077.28-19,428.66-8,108.36

Finding the Fourth Proportional to 14,077.28, 19,428.66 and 8,108.36

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Solution

The fourth proportional to 14,077.28, 19,428.66 and 8,108.36 is: 11,190.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,077.28 : 19,428.66 = 8,108.36 : x
  2. Step 2: Convert to fraction form
    14,077.28/19,428.66 = 8,108.36/x
  3. Step 3: Cross multiply
    14,077.28x = 19,428.66 × 8,108.36
  4. Step 4: Simplify right side
    14,077.28x = 157,534,569.60
  5. Step 5: Solve for x
    x = 157,534,569.60/14,077.28
  6. Step 6: Final answer
    x = 11,190.70

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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.