Home / 7,672.26-10,561.60-5,679.06

Finding the Fourth Proportional to 7,672.26, 10,561.60 and 5,679.06

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Solution

The fourth proportional to 7,672.26, 10,561.60 and 5,679.06 is: 7,817.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,672.26 : 10,561.60 = 5,679.06 : x
  2. Step 2: Convert to fraction form
    7,672.26/10,561.60 = 5,679.06/x
  3. Step 3: Cross multiply
    7,672.26x = 10,561.60 × 5,679.06
  4. Step 4: Simplify right side
    7,672.26x = 59,979,960.10
  5. Step 5: Solve for x
    x = 59,979,960.10/7,672.26
  6. Step 6: Final answer
    x = 7,817.77

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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.