Home / 7,929.93-11,886.80-5,162.16

Finding the Fourth Proportional to 7,929.93, 11,886.80 and 5,162.16

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Solution

The fourth proportional to 7,929.93, 11,886.80 and 5,162.16 is: 7,737.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.93 : 11,886.80 = 5,162.16 : x
  2. Step 2: Convert to fraction form
    7,929.93/11,886.80 = 5,162.16/x
  3. Step 3: Cross multiply
    7,929.93x = 11,886.80 × 5,162.16
  4. Step 4: Simplify right side
    7,929.93x = 61,361,537.68
  5. Step 5: Solve for x
    x = 61,361,537.68/7,929.93
  6. Step 6: Final answer
    x = 7,737.97

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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.