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Finding the Fourth Proportional to 18,242.78, 27,368.34 and 5,762.74

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Solution

The fourth proportional to 18,242.78, 27,368.34 and 5,762.74 is: 8,645.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,242.78 : 27,368.34 = 5,762.74 : x
  2. Step 2: Convert to fraction form
    18,242.78/27,368.34 = 5,762.74/x
  3. Step 3: Cross multiply
    18,242.78x = 27,368.34 × 5,762.74
  4. Step 4: Simplify right side
    18,242.78x = 157,716,627.65
  5. Step 5: Solve for x
    x = 157,716,627.65/18,242.78
  6. Step 6: Final answer
    x = 8,645.43

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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.