Home / 15,480.81-21,364.83-11,233.17

Finding the Fourth Proportional to 15,480.81, 21,364.83 and 11,233.17

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Solution

The fourth proportional to 15,480.81, 21,364.83 and 11,233.17 is: 15,502.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,480.81 : 21,364.83 = 11,233.17 : x
  2. Step 2: Convert to fraction form
    15,480.81/21,364.83 = 11,233.17/x
  3. Step 3: Cross multiply
    15,480.81x = 21,364.83 × 11,233.17
  4. Step 4: Simplify right side
    15,480.81x = 239,994,767.41
  5. Step 5: Solve for x
    x = 239,994,767.41/15,480.81
  6. Step 6: Final answer
    x = 15,502.73

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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.