Home / 12,772.48-19,133.80-7,208.99

Finding the Fourth Proportional to 12,772.48, 19,133.80 and 7,208.99

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Solution

The fourth proportional to 12,772.48, 19,133.80 and 7,208.99 is: 10,799.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,772.48 : 19,133.80 = 7,208.99 : x
  2. Step 2: Convert to fraction form
    12,772.48/19,133.80 = 7,208.99/x
  3. Step 3: Cross multiply
    12,772.48x = 19,133.80 × 7,208.99
  4. Step 4: Simplify right side
    12,772.48x = 137,935,372.86
  5. Step 5: Solve for x
    x = 137,935,372.86/12,772.48
  6. Step 6: Final answer
    x = 10,799.42

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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.