Home / 10,663.19-15,987.94-4,427.51

Finding the Fourth Proportional to 10,663.19, 15,987.94 and 4,427.51

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Solution

The fourth proportional to 10,663.19, 15,987.94 and 4,427.51 is: 6,638.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,663.19 : 15,987.94 = 4,427.51 : x
  2. Step 2: Convert to fraction form
    10,663.19/15,987.94 = 4,427.51/x
  3. Step 3: Cross multiply
    10,663.19x = 15,987.94 × 4,427.51
  4. Step 4: Simplify right side
    10,663.19x = 70,786,685.67
  5. Step 5: Solve for x
    x = 70,786,685.67/10,663.19
  6. Step 6: Final answer
    x = 6,638.42

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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.