Home / 11,281.60-15,563.64-6,805.54

Finding the Fourth Proportional to 11,281.60, 15,563.64 and 6,805.54

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Solution

The fourth proportional to 11,281.60, 15,563.64 and 6,805.54 is: 9,388.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,281.60 : 15,563.64 = 6,805.54 : x
  2. Step 2: Convert to fraction form
    11,281.60/15,563.64 = 6,805.54/x
  3. Step 3: Cross multiply
    11,281.60x = 15,563.64 × 6,805.54
  4. Step 4: Simplify right side
    11,281.60x = 105,918,974.57
  5. Step 5: Solve for x
    x = 105,918,974.57/11,281.60
  6. Step 6: Final answer
    x = 9,388.65

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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.