Home / 11,217.28-15,482.64-6,504.40

Finding the Fourth Proportional to 11,217.28, 15,482.64 and 6,504.40

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Solution

The fourth proportional to 11,217.28, 15,482.64 and 6,504.40 is: 8,977.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,217.28 : 15,482.64 = 6,504.40 : x
  2. Step 2: Convert to fraction form
    11,217.28/15,482.64 = 6,504.40/x
  3. Step 3: Cross multiply
    11,217.28x = 15,482.64 × 6,504.40
  4. Step 4: Simplify right side
    11,217.28x = 100,705,283.62
  5. Step 5: Solve for x
    x = 100,705,283.62/11,217.28
  6. Step 6: Final answer
    x = 8,977.69

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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.