Home / 13,949.81-19,251.34-7,983.35

Finding the Fourth Proportional to 13,949.81, 19,251.34 and 7,983.35

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Solution

The fourth proportional to 13,949.81, 19,251.34 and 7,983.35 is: 11,017.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.81 : 19,251.34 = 7,983.35 : x
  2. Step 2: Convert to fraction form
    13,949.81/19,251.34 = 7,983.35/x
  3. Step 3: Cross multiply
    13,949.81x = 19,251.34 × 7,983.35
  4. Step 4: Simplify right side
    13,949.81x = 153,690,068.97
  5. Step 5: Solve for x
    x = 153,690,068.97/13,949.81
  6. Step 6: Final answer
    x = 11,017.36

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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.