Home / 13,966.40-19,273.50-7,999.12

Finding the Fourth Proportional to 13,966.40, 19,273.50 and 7,999.12

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Solution

The fourth proportional to 13,966.40, 19,273.50 and 7,999.12 is: 11,038.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,966.40 : 19,273.50 = 7,999.12 : x
  2. Step 2: Convert to fraction form
    13,966.40/19,273.50 = 7,999.12/x
  3. Step 3: Cross multiply
    13,966.40x = 19,273.50 × 7,999.12
  4. Step 4: Simplify right side
    13,966.40x = 154,171,039.32
  5. Step 5: Solve for x
    x = 154,171,039.32/13,966.40
  6. Step 6: Final answer
    x = 11,038.71

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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.