Home / 12,944.80-19,417.20-9,664.30

Finding the Fourth Proportional to 12,944.80, 19,417.20 and 9,664.30

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Solution

The fourth proportional to 12,944.80, 19,417.20 and 9,664.30 is: 14,496.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,944.80 : 19,417.20 = 9,664.30 : x
  2. Step 2: Convert to fraction form
    12,944.80/19,417.20 = 9,664.30/x
  3. Step 3: Cross multiply
    12,944.80x = 19,417.20 × 9,664.30
  4. Step 4: Simplify right side
    12,944.80x = 187,653,645.96
  5. Step 5: Solve for x
    x = 187,653,645.96/12,944.80
  6. Step 6: Final answer
    x = 14,496.45

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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.