Home / 7,766.22-10,720.47-5,409.66

Finding the Fourth Proportional to 7,766.22, 10,720.47 and 5,409.66

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Solution

The fourth proportional to 7,766.22, 10,720.47 and 5,409.66 is: 7,467.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.22 : 10,720.47 = 5,409.66 : x
  2. Step 2: Convert to fraction form
    7,766.22/10,720.47 = 5,409.66/x
  3. Step 3: Cross multiply
    7,766.22x = 10,720.47 × 5,409.66
  4. Step 4: Simplify right side
    7,766.22x = 57,994,097.74
  5. Step 5: Solve for x
    x = 57,994,097.74/7,766.22
  6. Step 6: Final answer
    x = 7,467.48

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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.