Home / 15,011.24-20,715.48-8,296.79

Finding the Fourth Proportional to 15,011.24, 20,715.48 and 8,296.79

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Solution

The fourth proportional to 15,011.24, 20,715.48 and 8,296.79 is: 11,449.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,011.24 : 20,715.48 = 8,296.79 : x
  2. Step 2: Convert to fraction form
    15,011.24/20,715.48 = 8,296.79/x
  3. Step 3: Cross multiply
    15,011.24x = 20,715.48 × 8,296.79
  4. Step 4: Simplify right side
    15,011.24x = 171,872,000.26
  5. Step 5: Solve for x
    x = 171,872,000.26/15,011.24
  6. Step 6: Final answer
    x = 11,449.56

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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.