Home / 12,660.36-19,003.56-8,966.76

Finding the Fourth Proportional to 12,660.36, 19,003.56 and 8,966.76

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Solution

The fourth proportional to 12,660.36, 19,003.56 and 8,966.76 is: 13,459.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,660.36 : 19,003.56 = 8,966.76 : x
  2. Step 2: Convert to fraction form
    12,660.36/19,003.56 = 8,966.76/x
  3. Step 3: Cross multiply
    12,660.36x = 19,003.56 × 8,966.76
  4. Step 4: Simplify right side
    12,660.36x = 170,400,361.67
  5. Step 5: Solve for x
    x = 170,400,361.67/12,660.36
  6. Step 6: Final answer
    x = 13,459.36

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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.