Home / 15,621.88-23,435.52-6,857.68

Finding the Fourth Proportional to 15,621.88, 23,435.52 and 6,857.68

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Solution

The fourth proportional to 15,621.88, 23,435.52 and 6,857.68 is: 10,287.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,621.88 : 23,435.52 = 6,857.68 : x
  2. Step 2: Convert to fraction form
    15,621.88/23,435.52 = 6,857.68/x
  3. Step 3: Cross multiply
    15,621.88x = 23,435.52 × 6,857.68
  4. Step 4: Simplify right side
    15,621.88x = 160,713,296.79
  5. Step 5: Solve for x
    x = 160,713,296.79/15,621.88
  6. Step 6: Final answer
    x = 10,287.71

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1.5x scale

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.