Home / 9,021.20-13,531.80-6,544.40

Finding the Fourth Proportional to 9,021.20, 13,531.80 and 6,544.40

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Solution

The fourth proportional to 9,021.20, 13,531.80 and 6,544.40 is: 9,816.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,021.20 : 13,531.80 = 6,544.40 : x
  2. Step 2: Convert to fraction form
    9,021.20/13,531.80 = 6,544.40/x
  3. Step 3: Cross multiply
    9,021.20x = 13,531.80 × 6,544.40
  4. Step 4: Simplify right side
    9,021.20x = 88,557,511.92
  5. Step 5: Solve for x
    x = 88,557,511.92/9,021.20
  6. Step 6: Final answer
    x = 9,816.60

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1.5x scale

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.