Home / 11,621.07-16,036.62-6,315.78

Finding the Fourth Proportional to 11,621.07, 16,036.62 and 6,315.78

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Solution

The fourth proportional to 11,621.07, 16,036.62 and 6,315.78 is: 8,715.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.07 : 16,036.62 = 6,315.78 : x
  2. Step 2: Convert to fraction form
    11,621.07/16,036.62 = 6,315.78/x
  3. Step 3: Cross multiply
    11,621.07x = 16,036.62 × 6,315.78
  4. Step 4: Simplify right side
    11,621.07x = 101,283,763.86
  5. Step 5: Solve for x
    x = 101,283,763.86/11,621.07
  6. Step 6: Final answer
    x = 8,715.53

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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.