Home / 13,444.80-20,165.58-5,121.24

Finding the Fourth Proportional to 13,444.80, 20,165.58 and 5,121.24

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Solution

The fourth proportional to 13,444.80, 20,165.58 and 5,121.24 is: 7,681.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,444.80 : 20,165.58 = 5,121.24 : x
  2. Step 2: Convert to fraction form
    13,444.80/20,165.58 = 5,121.24/x
  3. Step 3: Cross multiply
    13,444.80x = 20,165.58 × 5,121.24
  4. Step 4: Simplify right side
    13,444.80x = 103,272,774.92
  5. Step 5: Solve for x
    x = 103,272,774.92/13,444.80
  6. Step 6: Final answer
    x = 7,681.24

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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.