Home / 10,933.90-16,364.40-9,621.70

Finding the Fourth Proportional to 10,933.90, 16,364.40 and 9,621.70

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Solution

The fourth proportional to 10,933.90, 16,364.40 and 9,621.70 is: 14,400.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,933.90 : 16,364.40 = 9,621.70 : x
  2. Step 2: Convert to fraction form
    10,933.90/16,364.40 = 9,621.70/x
  3. Step 3: Cross multiply
    10,933.90x = 16,364.40 × 9,621.70
  4. Step 4: Simplify right side
    10,933.90x = 157,453,347.48
  5. Step 5: Solve for x
    x = 157,453,347.48/10,933.90
  6. Step 6: Final answer
    x = 14,400.47

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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.