Home / 13,290.27-19,947.75-6,721.17

Finding the Fourth Proportional to 13,290.27, 19,947.75 and 6,721.17

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Solution

The fourth proportional to 13,290.27, 19,947.75 and 6,721.17 is: 10,088.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290.27 : 19,947.75 = 6,721.17 : x
  2. Step 2: Convert to fraction form
    13,290.27/19,947.75 = 6,721.17/x
  3. Step 3: Cross multiply
    13,290.27x = 19,947.75 × 6,721.17
  4. Step 4: Simplify right side
    13,290.27x = 134,072,218.87
  5. Step 5: Solve for x
    x = 134,072,218.87/13,290.27
  6. Step 6: Final answer
    x = 10,088.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.