Home / 10,986.60-16,478.21-3,591.10

Finding the Fourth Proportional to 10,986.60, 16,478.21 and 3,591.10

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Solution

The fourth proportional to 10,986.60, 16,478.21 and 3,591.10 is: 5,386.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,986.60 : 16,478.21 = 3,591.10 : x
  2. Step 2: Convert to fraction form
    10,986.60/16,478.21 = 3,591.10/x
  3. Step 3: Cross multiply
    10,986.60x = 16,478.21 × 3,591.10
  4. Step 4: Simplify right side
    10,986.60x = 59,174,867.71
  5. Step 5: Solve for x
    x = 59,174,867.71/10,986.60
  6. Step 6: Final answer
    x = 5,386.09

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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.