Home / 11,281.20-15,567.81-6,245.13

Finding the Fourth Proportional to 11,281.20, 15,567.81 and 6,245.13

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Solution

The fourth proportional to 11,281.20, 15,567.81 and 6,245.13 is: 8,618.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,281.20 : 15,567.81 = 6,245.13 : x
  2. Step 2: Convert to fraction form
    11,281.20/15,567.81 = 6,245.13/x
  3. Step 3: Cross multiply
    11,281.20x = 15,567.81 × 6,245.13
  4. Step 4: Simplify right side
    11,281.20x = 97,222,997.27
  5. Step 5: Solve for x
    x = 97,222,997.27/11,281.20
  6. Step 6: Final answer
    x = 8,618.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.