Home / 7,715.25-10,644.60-4,729.59

Finding the Fourth Proportional to 7,715.25, 10,644.60 and 4,729.59

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Solution

The fourth proportional to 7,715.25, 10,644.60 and 4,729.59 is: 6,525.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.25 : 10,644.60 = 4,729.59 : x
  2. Step 2: Convert to fraction form
    7,715.25/10,644.60 = 4,729.59/x
  3. Step 3: Cross multiply
    7,715.25x = 10,644.60 × 4,729.59
  4. Step 4: Simplify right side
    7,715.25x = 50,344,593.71
  5. Step 5: Solve for x
    x = 50,344,593.71/7,715.25
  6. Step 6: Final answer
    x = 6,525.34

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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.