Home / 7,717.20-10,645.20-5,064.72

Finding the Fourth Proportional to 7,717.20, 10,645.20 and 5,064.72

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Solution

The fourth proportional to 7,717.20, 10,645.20 and 5,064.72 is: 6,986.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.20 : 10,645.20 = 5,064.72 : x
  2. Step 2: Convert to fraction form
    7,717.20/10,645.20 = 5,064.72/x
  3. Step 3: Cross multiply
    7,717.20x = 10,645.20 × 5,064.72
  4. Step 4: Simplify right side
    7,717.20x = 53,914,957.34
  5. Step 5: Solve for x
    x = 53,914,957.34/7,717.20
  6. Step 6: Final answer
    x = 6,986.34

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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.