Home / 12,407.07-17,121.78-6,741.83

Finding the Fourth Proportional to 12,407.07, 17,121.78 and 6,741.83

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Solution

The fourth proportional to 12,407.07, 17,121.78 and 6,741.83 is: 9,303.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,407.07 : 17,121.78 = 6,741.83 : x
  2. Step 2: Convert to fraction form
    12,407.07/17,121.78 = 6,741.83/x
  3. Step 3: Cross multiply
    12,407.07x = 17,121.78 × 6,741.83
  4. Step 4: Simplify right side
    12,407.07x = 115,432,172.86
  5. Step 5: Solve for x
    x = 115,432,172.86/12,407.07
  6. Step 6: Final answer
    x = 9,303.74

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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.