Home / 13,998.91-19,318.15-8,030.19

Finding the Fourth Proportional to 13,998.91, 19,318.15 and 8,030.19

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Solution

The fourth proportional to 13,998.91, 19,318.15 and 8,030.19 is: 11,081.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.91 : 19,318.15 = 8,030.19 : x
  2. Step 2: Convert to fraction form
    13,998.91/19,318.15 = 8,030.19/x
  3. Step 3: Cross multiply
    13,998.91x = 19,318.15 × 8,030.19
  4. Step 4: Simplify right side
    13,998.91x = 155,128,414.95
  5. Step 5: Solve for x
    x = 155,128,414.95/13,998.91
  6. Step 6: Final answer
    x = 11,081.47

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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.