Home / 12,587.37-17,374.08-7,212.83

Finding the Fourth Proportional to 12,587.37, 17,374.08 and 7,212.83

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Solution

The fourth proportional to 12,587.37, 17,374.08 and 7,212.83 is: 9,955.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587.37 : 17,374.08 = 7,212.83 : x
  2. Step 2: Convert to fraction form
    12,587.37/17,374.08 = 7,212.83/x
  3. Step 3: Cross multiply
    12,587.37x = 17,374.08 × 7,212.83
  4. Step 4: Simplify right side
    12,587.37x = 125,316,198.58
  5. Step 5: Solve for x
    x = 125,316,198.58/12,587.37
  6. Step 6: Final answer
    x = 9,955.71

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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.