Home / 12,557.51-18,845.31-5,983.55

Finding the Fourth Proportional to 12,557.51, 18,845.31 and 5,983.55

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Solution

The fourth proportional to 12,557.51, 18,845.31 and 5,983.55 is: 8,979.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,557.51 : 18,845.31 = 5,983.55 : x
  2. Step 2: Convert to fraction form
    12,557.51/18,845.31 = 5,983.55/x
  3. Step 3: Cross multiply
    12,557.51x = 18,845.31 × 5,983.55
  4. Step 4: Simplify right side
    12,557.51x = 112,761,854.65
  5. Step 5: Solve for x
    x = 112,761,854.65/12,557.51
  6. Step 6: Final answer
    x = 8,979.63

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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.