Home / 12,157.52-18,239.36-3,392.43

Finding the Fourth Proportional to 12,157.52, 18,239.36 and 3,392.43

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Solution

The fourth proportional to 12,157.52, 18,239.36 and 3,392.43 is: 5,089.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157.52 : 18,239.36 = 3,392.43 : x
  2. Step 2: Convert to fraction form
    12,157.52/18,239.36 = 3,392.43/x
  3. Step 3: Cross multiply
    12,157.52x = 18,239.36 × 3,392.43
  4. Step 4: Simplify right side
    12,157.52x = 61,875,752.04
  5. Step 5: Solve for x
    x = 61,875,752.04/12,157.52
  6. Step 6: Final answer
    x = 5,089.50

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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.