Home / 18,933.32-28,368.59-11,515.34

Finding the Fourth Proportional to 18,933.32, 28,368.59 and 11,515.34

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Solution

The fourth proportional to 18,933.32, 28,368.59 and 11,515.34 is: 17,253.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.32 : 28,368.59 = 11,515.34 : x
  2. Step 2: Convert to fraction form
    18,933.32/28,368.59 = 11,515.34/x
  3. Step 3: Cross multiply
    18,933.32x = 28,368.59 × 11,515.34
  4. Step 4: Simplify right side
    18,933.32x = 326,673,972.52
  5. Step 5: Solve for x
    x = 326,673,972.52/18,933.32
  6. Step 6: Final answer
    x = 17,253.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.