Home / 12,237.36-18,356.82-5,213.40

Finding the Fourth Proportional to 12,237.36, 18,356.82 and 5,213.40

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Solution

The fourth proportional to 12,237.36, 18,356.82 and 5,213.40 is: 7,820.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.36 : 18,356.82 = 5,213.40 : x
  2. Step 2: Convert to fraction form
    12,237.36/18,356.82 = 5,213.40/x
  3. Step 3: Cross multiply
    12,237.36x = 18,356.82 × 5,213.40
  4. Step 4: Simplify right side
    12,237.36x = 95,701,445.39
  5. Step 5: Solve for x
    x = 95,701,445.39/12,237.36
  6. Step 6: Final answer
    x = 7,820.43

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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.