Home / 13,412.16-20,116.44-5,089.92

Finding the Fourth Proportional to 13,412.16, 20,116.44 and 5,089.92

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Solution

The fourth proportional to 13,412.16, 20,116.44 and 5,089.92 is: 7,634.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.16 : 20,116.44 = 5,089.92 : x
  2. Step 2: Convert to fraction form
    13,412.16/20,116.44 = 5,089.92/x
  3. Step 3: Cross multiply
    13,412.16x = 20,116.44 × 5,089.92
  4. Step 4: Simplify right side
    13,412.16x = 102,391,070.28
  5. Step 5: Solve for x
    x = 102,391,070.28/13,412.16
  6. Step 6: Final answer
    x = 7,634.20

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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.