Home / 13,327.78-18,392.56-7,359.08

Finding the Fourth Proportional to 13,327.78, 18,392.56 and 7,359.08

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Solution

The fourth proportional to 13,327.78, 18,392.56 and 7,359.08 is: 10,155.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,327.78 : 18,392.56 = 7,359.08 : x
  2. Step 2: Convert to fraction form
    13,327.78/18,392.56 = 7,359.08/x
  3. Step 3: Cross multiply
    13,327.78x = 18,392.56 × 7,359.08
  4. Step 4: Simplify right side
    13,327.78x = 135,352,320.44
  5. Step 5: Solve for x
    x = 135,352,320.44/13,327.78
  6. Step 6: Final answer
    x = 10,155.65

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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.