Home / 11,407.39-15,741.81-6,371.57

Finding the Fourth Proportional to 11,407.39, 15,741.81 and 6,371.57

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Solution

The fourth proportional to 11,407.39, 15,741.81 and 6,371.57 is: 8,792.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,407.39 : 15,741.81 = 6,371.57 : x
  2. Step 2: Convert to fraction form
    11,407.39/15,741.81 = 6,371.57/x
  3. Step 3: Cross multiply
    11,407.39x = 15,741.81 × 6,371.57
  4. Step 4: Simplify right side
    11,407.39x = 100,300,044.34
  5. Step 5: Solve for x
    x = 100,300,044.34/11,407.39
  6. Step 6: Final answer
    x = 8,792.55

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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.