Home / 13,747.91-18,972.09-7,460.28

Finding the Fourth Proportional to 13,747.91, 18,972.09 and 7,460.28

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Solution

The fourth proportional to 13,747.91, 18,972.09 and 7,460.28 is: 10,295.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.91 : 18,972.09 = 7,460.28 : x
  2. Step 2: Convert to fraction form
    13,747.91/18,972.09 = 7,460.28/x
  3. Step 3: Cross multiply
    13,747.91x = 18,972.09 × 7,460.28
  4. Step 4: Simplify right side
    13,747.91x = 141,537,103.59
  5. Step 5: Solve for x
    x = 141,537,103.59/13,747.91
  6. Step 6: Final answer
    x = 10,295.18

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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.