Home / 15,813.18-23,719.77-5,425.02

Finding the Fourth Proportional to 15,813.18, 23,719.77 and 5,425.02

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Solution

The fourth proportional to 15,813.18, 23,719.77 and 5,425.02 is: 8,137.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,813.18 : 23,719.77 = 5,425.02 : x
  2. Step 2: Convert to fraction form
    15,813.18/23,719.77 = 5,425.02/x
  3. Step 3: Cross multiply
    15,813.18x = 23,719.77 × 5,425.02
  4. Step 4: Simplify right side
    15,813.18x = 128,680,226.65
  5. Step 5: Solve for x
    x = 128,680,226.65/15,813.18
  6. Step 6: Final answer
    x = 8,137.53

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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.