Home / 13,867.92-20,802.15-6,470.37

Finding the Fourth Proportional to 13,867.92, 20,802.15 and 6,470.37

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Solution

The fourth proportional to 13,867.92, 20,802.15 and 6,470.37 is: 9,705.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.92 : 20,802.15 = 6,470.37 : x
  2. Step 2: Convert to fraction form
    13,867.92/20,802.15 = 6,470.37/x
  3. Step 3: Cross multiply
    13,867.92x = 20,802.15 × 6,470.37
  4. Step 4: Simplify right side
    13,867.92x = 134,597,607.30
  5. Step 5: Solve for x
    x = 134,597,607.30/13,867.92
  6. Step 6: Final answer
    x = 9,705.68

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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.