Home / 7,713.90-10,650.40-5,065.80

Finding the Fourth Proportional to 7,713.90, 10,650.40 and 5,065.80

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Solution

The fourth proportional to 7,713.90, 10,650.40 and 5,065.80 is: 6,994.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,713.90 : 10,650.40 = 5,065.80 : x
  2. Step 2: Convert to fraction form
    7,713.90/10,650.40 = 5,065.80/x
  3. Step 3: Cross multiply
    7,713.90x = 10,650.40 × 5,065.80
  4. Step 4: Simplify right side
    7,713.90x = 53,952,796.32
  5. Step 5: Solve for x
    x = 53,952,796.32/7,713.90
  6. Step 6: Final answer
    x = 6,994.23

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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.