Home / 13,411.73-20,117.25-6,396.70

Finding the Fourth Proportional to 13,411.73, 20,117.25 and 6,396.70

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Solution

The fourth proportional to 13,411.73, 20,117.25 and 6,396.70 is: 9,594.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,411.73 : 20,117.25 = 6,396.70 : x
  2. Step 2: Convert to fraction form
    13,411.73/20,117.25 = 6,396.70/x
  3. Step 3: Cross multiply
    13,411.73x = 20,117.25 × 6,396.70
  4. Step 4: Simplify right side
    13,411.73x = 128,684,013.08
  5. Step 5: Solve for x
    x = 128,684,013.08/13,411.73
  6. Step 6: Final answer
    x = 9,594.89

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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.