Home / 12,520.15-17,277.81-7,214.96

Finding the Fourth Proportional to 12,520.15, 17,277.81 and 7,214.96

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Solution

The fourth proportional to 12,520.15, 17,277.81 and 7,214.96 is: 9,956.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520.15 : 17,277.81 = 7,214.96 : x
  2. Step 2: Convert to fraction form
    12,520.15/17,277.81 = 7,214.96/x
  3. Step 3: Cross multiply
    12,520.15x = 17,277.81 × 7,214.96
  4. Step 4: Simplify right side
    12,520.15x = 124,658,708.04
  5. Step 5: Solve for x
    x = 124,658,708.04/12,520.15
  6. Step 6: Final answer
    x = 9,956.65

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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.