Home / 14,891.12-20,552.40-11,133.12

Finding the Fourth Proportional to 14,891.12, 20,552.40 and 11,133.12

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Solution

The fourth proportional to 14,891.12, 20,552.40 and 11,133.12 is: 15,365.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,891.12 : 20,552.40 = 11,133.12 : x
  2. Step 2: Convert to fraction form
    14,891.12/20,552.40 = 11,133.12/x
  3. Step 3: Cross multiply
    14,891.12x = 20,552.40 × 11,133.12
  4. Step 4: Simplify right side
    14,891.12x = 228,812,335.49
  5. Step 5: Solve for x
    x = 228,812,335.49/14,891.12
  6. Step 6: Final answer
    x = 15,365.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.