Home / 10,854.78-16,281.87-3,459.68

Finding the Fourth Proportional to 10,854.78, 16,281.87 and 3,459.68

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Solution

The fourth proportional to 10,854.78, 16,281.87 and 3,459.68 is: 5,189.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,854.78 : 16,281.87 = 3,459.68 : x
  2. Step 2: Convert to fraction form
    10,854.78/16,281.87 = 3,459.68/x
  3. Step 3: Cross multiply
    10,854.78x = 16,281.87 × 3,459.68
  4. Step 4: Simplify right side
    10,854.78x = 56,330,118.26
  5. Step 5: Solve for x
    x = 56,330,118.26/10,854.78
  6. Step 6: Final answer
    x = 5,189.43

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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.