Home / 7,239.69-10,851.30-5,478.96

Finding the Fourth Proportional to 7,239.69, 10,851.30 and 5,478.96

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Solution

The fourth proportional to 7,239.69, 10,851.30 and 5,478.96 is: 8,212.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.69 : 10,851.30 = 5,478.96 : x
  2. Step 2: Convert to fraction form
    7,239.69/10,851.30 = 5,478.96/x
  3. Step 3: Cross multiply
    7,239.69x = 10,851.30 × 5,478.96
  4. Step 4: Simplify right side
    7,239.69x = 59,453,838.65
  5. Step 5: Solve for x
    x = 59,453,838.65/7,239.69
  6. Step 6: Final answer
    x = 8,212.21

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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.