Home / 11,222.59-15,482.84-6,440.82

Finding the Fourth Proportional to 11,222.59, 15,482.84 and 6,440.82

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Solution

The fourth proportional to 11,222.59, 15,482.84 and 6,440.82 is: 8,885.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,222.59 : 15,482.84 = 6,440.82 : x
  2. Step 2: Convert to fraction form
    11,222.59/15,482.84 = 6,440.82/x
  3. Step 3: Cross multiply
    11,222.59x = 15,482.84 × 6,440.82
  4. Step 4: Simplify right side
    11,222.59x = 99,722,185.53
  5. Step 5: Solve for x
    x = 99,722,185.53/11,222.59
  6. Step 6: Final answer
    x = 8,885.84

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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.