Home / 9,212.16-12,712.86-5,020.68

Finding the Fourth Proportional to 9,212.16, 12,712.86 and 5,020.68

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Solution

The fourth proportional to 9,212.16, 12,712.86 and 5,020.68 is: 6,928.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,212.16 : 12,712.86 = 5,020.68 : x
  2. Step 2: Convert to fraction form
    9,212.16/12,712.86 = 5,020.68/x
  3. Step 3: Cross multiply
    9,212.16x = 12,712.86 × 5,020.68
  4. Step 4: Simplify right side
    9,212.16x = 63,827,201.94
  5. Step 5: Solve for x
    x = 63,827,201.94/9,212.16
  6. Step 6: Final answer
    x = 6,928.58

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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.