Home / 11,349.50-15,662.31-6,381.50

Finding the Fourth Proportional to 11,349.50, 15,662.31 and 6,381.50

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Solution

The fourth proportional to 11,349.50, 15,662.31 and 6,381.50 is: 8,806.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,349.50 : 15,662.31 = 6,381.50 : x
  2. Step 2: Convert to fraction form
    11,349.50/15,662.31 = 6,381.50/x
  3. Step 3: Cross multiply
    11,349.50x = 15,662.31 × 6,381.50
  4. Step 4: Simplify right side
    11,349.50x = 99,949,031.27
  5. Step 5: Solve for x
    x = 99,949,031.27/11,349.50
  6. Step 6: Final answer
    x = 8,806.47

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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.