Home / 13,866.42-20,799.54-3,478.14

Finding the Fourth Proportional to 13,866.42, 20,799.54 and 3,478.14

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Solution

The fourth proportional to 13,866.42, 20,799.54 and 3,478.14 is: 5,217.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,866.42 : 20,799.54 = 3,478.14 : x
  2. Step 2: Convert to fraction form
    13,866.42/20,799.54 = 3,478.14/x
  3. Step 3: Cross multiply
    13,866.42x = 20,799.54 × 3,478.14
  4. Step 4: Simplify right side
    13,866.42x = 72,343,712.06
  5. Step 5: Solve for x
    x = 72,343,712.06/13,866.42
  6. Step 6: Final answer
    x = 5,217.19

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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.