Home / 7,679.79-11,501.21-5,207.12

Finding the Fourth Proportional to 7,679.79, 11,501.21 and 5,207.12

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Solution

The fourth proportional to 7,679.79, 11,501.21 and 5,207.12 is: 7,798.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,679.79 : 11,501.21 = 5,207.12 : x
  2. Step 2: Convert to fraction form
    7,679.79/11,501.21 = 5,207.12/x
  3. Step 3: Cross multiply
    7,679.79x = 11,501.21 × 5,207.12
  4. Step 4: Simplify right side
    7,679.79x = 59,888,179.26
  5. Step 5: Solve for x
    x = 59,888,179.26/7,679.79
  6. Step 6: Final answer
    x = 7,798.15

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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.