Home / 13,744.74-18,972.30-9,777.36

Finding the Fourth Proportional to 13,744.74, 18,972.30 and 9,777.36

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Solution

The fourth proportional to 13,744.74, 18,972.30 and 9,777.36 is: 13,496.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,744.74 : 18,972.30 = 9,777.36 : x
  2. Step 2: Convert to fraction form
    13,744.74/18,972.30 = 9,777.36/x
  3. Step 3: Cross multiply
    13,744.74x = 18,972.30 × 9,777.36
  4. Step 4: Simplify right side
    13,744.74x = 185,499,007.13
  5. Step 5: Solve for x
    x = 185,499,007.13/13,744.74
  6. Step 6: Final answer
    x = 13,496.00

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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.