Home / 13,795.60-20,695.46-6,400.81

Finding the Fourth Proportional to 13,795.60, 20,695.46 and 6,400.81

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Solution

The fourth proportional to 13,795.60, 20,695.46 and 6,400.81 is: 9,602.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,795.60 : 20,695.46 = 6,400.81 : x
  2. Step 2: Convert to fraction form
    13,795.60/20,695.46 = 6,400.81/x
  3. Step 3: Cross multiply
    13,795.60x = 20,695.46 × 6,400.81
  4. Step 4: Simplify right side
    13,795.60x = 132,467,707.32
  5. Step 5: Solve for x
    x = 132,467,707.32/13,795.60
  6. Step 6: Final answer
    x = 9,602.17

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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.