Home / 10,721.13-14,788.26-7,732.23

Finding the Fourth Proportional to 10,721.13, 14,788.26 and 7,732.23

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Solution

The fourth proportional to 10,721.13, 14,788.26 and 7,732.23 is: 10,665.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.13 : 14,788.26 = 7,732.23 : x
  2. Step 2: Convert to fraction form
    10,721.13/14,788.26 = 7,732.23/x
  3. Step 3: Cross multiply
    10,721.13x = 14,788.26 × 7,732.23
  4. Step 4: Simplify right side
    10,721.13x = 114,346,227.62
  5. Step 5: Solve for x
    x = 114,346,227.62/10,721.13
  6. Step 6: Final answer
    x = 10,665.50

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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.