Home / 7,215.54-10,820.88-5,825.58

Finding the Fourth Proportional to 7,215.54, 10,820.88 and 5,825.58

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Solution

The fourth proportional to 7,215.54, 10,820.88 and 5,825.58 is: 8,736.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.54 : 10,820.88 = 5,825.58 : x
  2. Step 2: Convert to fraction form
    7,215.54/10,820.88 = 5,825.58/x
  3. Step 3: Cross multiply
    7,215.54x = 10,820.88 × 5,825.58
  4. Step 4: Simplify right side
    7,215.54x = 63,037,902.11
  5. Step 5: Solve for x
    x = 63,037,902.11/7,215.54
  6. Step 6: Final answer
    x = 8,736.41

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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.