Home / 10,721.25-14,801.81-7,001.73

Finding the Fourth Proportional to 10,721.25, 14,801.81 and 7,001.73

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Solution

The fourth proportional to 10,721.25, 14,801.81 and 7,001.73 is: 9,666.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.25 : 14,801.81 = 7,001.73 : x
  2. Step 2: Convert to fraction form
    10,721.25/14,801.81 = 7,001.73/x
  3. Step 3: Cross multiply
    10,721.25x = 14,801.81 × 7,001.73
  4. Step 4: Simplify right side
    10,721.25x = 103,638,242.12
  5. Step 5: Solve for x
    x = 103,638,242.12/10,721.25
  6. Step 6: Final answer
    x = 9,666.62

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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.