Home / 13,999.38-19,318.14-8,030.90

Finding the Fourth Proportional to 13,999.38, 19,318.14 and 8,030.90

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Solution

The fourth proportional to 13,999.38, 19,318.14 and 8,030.90 is: 11,082.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999.38 : 19,318.14 = 8,030.90 : x
  2. Step 2: Convert to fraction form
    13,999.38/19,318.14 = 8,030.90/x
  3. Step 3: Cross multiply
    13,999.38x = 19,318.14 × 8,030.90
  4. Step 4: Simplify right side
    13,999.38x = 155,141,953.94
  5. Step 5: Solve for x
    x = 155,141,953.94/13,999.38
  6. Step 6: Final answer
    x = 11,082.06

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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.