Home / 8,990.26-13,482.86-5,381.44

Finding the Fourth Proportional to 8,990.26, 13,482.86 and 5,381.44

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Solution

The fourth proportional to 8,990.26, 13,482.86 and 5,381.44 is: 8,070.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990.26 : 13,482.86 = 5,381.44 : x
  2. Step 2: Convert to fraction form
    8,990.26/13,482.86 = 5,381.44/x
  3. Step 3: Cross multiply
    8,990.26x = 13,482.86 × 5,381.44
  4. Step 4: Simplify right side
    8,990.26x = 72,557,141.50
  5. Step 5: Solve for x
    x = 72,557,141.50/8,990.26
  6. Step 6: Final answer
    x = 8,070.64

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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.