Home / 13,872.90-20,807.19-4,513.08

Finding the Fourth Proportional to 13,872.90, 20,807.19 and 4,513.08

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Solution

The fourth proportional to 13,872.90, 20,807.19 and 4,513.08 is: 6,768.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872.90 : 20,807.19 = 4,513.08 : x
  2. Step 2: Convert to fraction form
    13,872.90/20,807.19 = 4,513.08/x
  3. Step 3: Cross multiply
    13,872.90x = 20,807.19 × 4,513.08
  4. Step 4: Simplify right side
    13,872.90x = 93,904,513.05
  5. Step 5: Solve for x
    x = 93,904,513.05/13,872.90
  6. Step 6: Final answer
    x = 6,768.92

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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.