Home / 13,972.77-19,281.78-8,003.88

Finding the Fourth Proportional to 13,972.77, 19,281.78 and 8,003.88

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Solution

The fourth proportional to 13,972.77, 19,281.78 and 8,003.88 is: 11,044.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.77 : 19,281.78 = 8,003.88 : x
  2. Step 2: Convert to fraction form
    13,972.77/19,281.78 = 8,003.88/x
  3. Step 3: Cross multiply
    13,972.77x = 19,281.78 × 8,003.88
  4. Step 4: Simplify right side
    13,972.77x = 154,329,053.31
  5. Step 5: Solve for x
    x = 154,329,053.31/13,972.77
  6. Step 6: Final answer
    x = 11,044.99

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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.