Home / 15,618.15-21,553.02-8,544.56

Finding the Fourth Proportional to 15,618.15, 21,553.02 and 8,544.56

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Solution

The fourth proportional to 15,618.15, 21,553.02 and 8,544.56 is: 11,791.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,618.15 : 21,553.02 = 8,544.56 : x
  2. Step 2: Convert to fraction form
    15,618.15/21,553.02 = 8,544.56/x
  3. Step 3: Cross multiply
    15,618.15x = 21,553.02 × 8,544.56
  4. Step 4: Simplify right side
    15,618.15x = 184,160,964.81
  5. Step 5: Solve for x
    x = 184,160,964.81/15,618.15
  6. Step 6: Final answer
    x = 11,791.47

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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.