Home / 15,400.69-21,252.96-8,327.12

Finding the Fourth Proportional to 15,400.69, 21,252.96 and 8,327.12

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Solution

The fourth proportional to 15,400.69, 21,252.96 and 8,327.12 is: 11,491.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400.69 : 21,252.96 = 8,327.12 : x
  2. Step 2: Convert to fraction form
    15,400.69/21,252.96 = 8,327.12/x
  3. Step 3: Cross multiply
    15,400.69x = 21,252.96 × 8,327.12
  4. Step 4: Simplify right side
    15,400.69x = 176,975,848.48
  5. Step 5: Solve for x
    x = 176,975,848.48/15,400.69
  6. Step 6: Final answer
    x = 11,491.42

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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.