Home / 11,349.18-15,662.34-6,872.13

Finding the Fourth Proportional to 11,349.18, 15,662.34 and 6,872.13

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Solution

The fourth proportional to 11,349.18, 15,662.34 and 6,872.13 is: 9,483.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,349.18 : 15,662.34 = 6,872.13 : x
  2. Step 2: Convert to fraction form
    11,349.18/15,662.34 = 6,872.13/x
  3. Step 3: Cross multiply
    11,349.18x = 15,662.34 × 6,872.13
  4. Step 4: Simplify right side
    11,349.18x = 107,633,636.58
  5. Step 5: Solve for x
    x = 107,633,636.58/11,349.18
  6. Step 6: Final answer
    x = 9,483.82

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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.