Home / 13,988.44-19,306.64-8,020.15

Finding the Fourth Proportional to 13,988.44, 19,306.64 and 8,020.15

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Solution

The fourth proportional to 13,988.44, 19,306.64 and 8,020.15 is: 11,069.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.44 : 19,306.64 = 8,020.15 : x
  2. Step 2: Convert to fraction form
    13,988.44/19,306.64 = 8,020.15/x
  3. Step 3: Cross multiply
    13,988.44x = 19,306.64 × 8,020.15
  4. Step 4: Simplify right side
    13,988.44x = 154,842,108.70
  5. Step 5: Solve for x
    x = 154,842,108.70/13,988.44
  6. Step 6: Final answer
    x = 11,069.29

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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.