Home / 7,801.20-11,706.74-5,688.88

Finding the Fourth Proportional to 7,801.20, 11,706.74 and 5,688.88

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Solution

The fourth proportional to 7,801.20, 11,706.74 and 5,688.88 is: 8,536.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,801.20 : 11,706.74 = 5,688.88 : x
  2. Step 2: Convert to fraction form
    7,801.20/11,706.74 = 5,688.88/x
  3. Step 3: Cross multiply
    7,801.20x = 11,706.74 × 5,688.88
  4. Step 4: Simplify right side
    7,801.20x = 66,598,239.05
  5. Step 5: Solve for x
    x = 66,598,239.05/7,801.20
  6. Step 6: Final answer
    x = 8,536.92

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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.