Home / 10,605.24-15,909.36-3,208.68

Finding the Fourth Proportional to 10,605.24, 15,909.36 and 3,208.68

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Solution

The fourth proportional to 10,605.24, 15,909.36 and 3,208.68 is: 4,813.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,605.24 : 15,909.36 = 3,208.68 : x
  2. Step 2: Convert to fraction form
    10,605.24/15,909.36 = 3,208.68/x
  3. Step 3: Cross multiply
    10,605.24x = 15,909.36 × 3,208.68
  4. Step 4: Simplify right side
    10,605.24x = 51,048,045.24
  5. Step 5: Solve for x
    x = 51,048,045.24/10,605.24
  6. Step 6: Final answer
    x = 4,813.47

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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.