Home / 10,886.34-16,330.50-3,865.68

Finding the Fourth Proportional to 10,886.34, 16,330.50 and 3,865.68

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Solution

The fourth proportional to 10,886.34, 16,330.50 and 3,865.68 is: 5,798.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,886.34 : 16,330.50 = 3,865.68 : x
  2. Step 2: Convert to fraction form
    10,886.34/16,330.50 = 3,865.68/x
  3. Step 3: Cross multiply
    10,886.34x = 16,330.50 × 3,865.68
  4. Step 4: Simplify right side
    10,886.34x = 63,128,487.24
  5. Step 5: Solve for x
    x = 63,128,487.24/10,886.34
  6. Step 6: Final answer
    x = 5,798.87

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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.