Home / 13,392.86-18,481.58-7,342.98

Finding the Fourth Proportional to 13,392.86, 18,481.58 and 7,342.98

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Solution

The fourth proportional to 13,392.86, 18,481.58 and 7,342.98 is: 10,133.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392.86 : 18,481.58 = 7,342.98 : x
  2. Step 2: Convert to fraction form
    13,392.86/18,481.58 = 7,342.98/x
  3. Step 3: Cross multiply
    13,392.86x = 18,481.58 × 7,342.98
  4. Step 4: Simplify right side
    13,392.86x = 135,709,872.31
  5. Step 5: Solve for x
    x = 135,709,872.31/13,392.86
  6. Step 6: Final answer
    x = 10,133.00

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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.