Home / 10,762.26-16,147.56-5,215.20

Finding the Fourth Proportional to 10,762.26, 16,147.56 and 5,215.20

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Solution

The fourth proportional to 10,762.26, 16,147.56 and 5,215.20 is: 7,824.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,762.26 : 16,147.56 = 5,215.20 : x
  2. Step 2: Convert to fraction form
    10,762.26/16,147.56 = 5,215.20/x
  3. Step 3: Cross multiply
    10,762.26x = 16,147.56 × 5,215.20
  4. Step 4: Simplify right side
    10,762.26x = 84,212,754.91
  5. Step 5: Solve for x
    x = 84,212,754.91/10,762.26
  6. Step 6: Final answer
    x = 7,824.82

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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.