Home / 14,775.36-20,398.08-9,998.88

Finding the Fourth Proportional to 14,775.36, 20,398.08 and 9,998.88

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Solution

The fourth proportional to 14,775.36, 20,398.08 and 9,998.88 is: 13,803.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,775.36 : 20,398.08 = 9,998.88 : x
  2. Step 2: Convert to fraction form
    14,775.36/20,398.08 = 9,998.88/x
  3. Step 3: Cross multiply
    14,775.36x = 20,398.08 × 9,998.88
  4. Step 4: Simplify right side
    14,775.36x = 203,957,954.15
  5. Step 5: Solve for x
    x = 203,957,954.15/14,775.36
  6. Step 6: Final answer
    x = 13,803.92

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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.