Home / 14,686.82-20,267.48-7,972.46

Finding the Fourth Proportional to 14,686.82, 20,267.48 and 7,972.46

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Solution

The fourth proportional to 14,686.82, 20,267.48 and 7,972.46 is: 11,001.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,686.82 : 20,267.48 = 7,972.46 : x
  2. Step 2: Convert to fraction form
    14,686.82/20,267.48 = 7,972.46/x
  3. Step 3: Cross multiply
    14,686.82x = 20,267.48 × 7,972.46
  4. Step 4: Simplify right side
    14,686.82x = 161,581,673.60
  5. Step 5: Solve for x
    x = 161,581,673.60/14,686.82
  6. Step 6: Final answer
    x = 11,001.81

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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.