Home / 10,449.34-15,669.65-3,871.94

Finding the Fourth Proportional to 10,449.34, 15,669.65 and 3,871.94

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Solution

The fourth proportional to 10,449.34, 15,669.65 and 3,871.94 is: 5,806.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,449.34 : 15,669.65 = 3,871.94 : x
  2. Step 2: Convert to fraction form
    10,449.34/15,669.65 = 3,871.94/x
  3. Step 3: Cross multiply
    10,449.34x = 15,669.65 × 3,871.94
  4. Step 4: Simplify right side
    10,449.34x = 60,671,875.95
  5. Step 5: Solve for x
    x = 60,671,875.95/10,449.34
  6. Step 6: Final answer
    x = 5,806.29

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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.