Home / 13,468.13-20,174.65-10,978.19

Finding the Fourth Proportional to 13,468.13, 20,174.65 and 10,978.19

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Solution

The fourth proportional to 13,468.13, 20,174.65 and 10,978.19 is: 16,444.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,468.13 : 20,174.65 = 10,978.19 : x
  2. Step 2: Convert to fraction form
    13,468.13/20,174.65 = 10,978.19/x
  3. Step 3: Cross multiply
    13,468.13x = 20,174.65 × 10,978.19
  4. Step 4: Simplify right side
    13,468.13x = 221,481,140.88
  5. Step 5: Solve for x
    x = 221,481,140.88/13,468.13
  6. Step 6: Final answer
    x = 16,444.83

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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.