Home / 13,977.78-19,292.09-8,013.45

Finding the Fourth Proportional to 13,977.78, 19,292.09 and 8,013.45

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Solution

The fourth proportional to 13,977.78, 19,292.09 and 8,013.45 is: 11,060.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.78 : 19,292.09 = 8,013.45 : x
  2. Step 2: Convert to fraction form
    13,977.78/19,292.09 = 8,013.45/x
  3. Step 3: Cross multiply
    13,977.78x = 19,292.09 × 8,013.45
  4. Step 4: Simplify right side
    13,977.78x = 154,596,198.61
  5. Step 5: Solve for x
    x = 154,596,198.61/13,977.78
  6. Step 6: Final answer
    x = 11,060.14

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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.