Home / 7,115.84-10,611.04-6,623.36

Finding the Fourth Proportional to 7,115.84, 10,611.04 and 6,623.36

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Solution

The fourth proportional to 7,115.84, 10,611.04 and 6,623.36 is: 9,876.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.84 : 10,611.04 = 6,623.36 : x
  2. Step 2: Convert to fraction form
    7,115.84/10,611.04 = 6,623.36/x
  3. Step 3: Cross multiply
    7,115.84x = 10,611.04 × 6,623.36
  4. Step 4: Simplify right side
    7,115.84x = 70,280,737.89
  5. Step 5: Solve for x
    x = 70,280,737.89/7,115.84
  6. Step 6: Final answer
    x = 9,876.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.