Home / 12,910.48-17,815.73-7,244.70

Finding the Fourth Proportional to 12,910.48, 17,815.73 and 7,244.70

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Solution

The fourth proportional to 12,910.48, 17,815.73 and 7,244.70 is: 9,997.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,910.48 : 17,815.73 = 7,244.70 : x
  2. Step 2: Convert to fraction form
    12,910.48/17,815.73 = 7,244.70/x
  3. Step 3: Cross multiply
    12,910.48x = 17,815.73 × 7,244.70
  4. Step 4: Simplify right side
    12,910.48x = 129,069,637.24
  5. Step 5: Solve for x
    x = 129,069,637.24/12,910.48
  6. Step 6: Final answer
    x = 9,997.28

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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.