Home / 12,927.72-17,829.30-10,920.99

Finding the Fourth Proportional to 12,927.72, 17,829.30 and 10,920.99

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Solution

The fourth proportional to 12,927.72, 17,829.30 and 10,920.99 is: 15,061.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,927.72 : 17,829.30 = 10,920.99 : x
  2. Step 2: Convert to fraction form
    12,927.72/17,829.30 = 10,920.99/x
  3. Step 3: Cross multiply
    12,927.72x = 17,829.30 × 10,920.99
  4. Step 4: Simplify right side
    12,927.72x = 194,713,607.01
  5. Step 5: Solve for x
    x = 194,713,607.01/12,927.72
  6. Step 6: Final answer
    x = 15,061.71

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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.