Home / 10,386.51-14,334.41-6,138.97

Finding the Fourth Proportional to 10,386.51, 14,334.41 and 6,138.97

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Solution

The fourth proportional to 10,386.51, 14,334.41 and 6,138.97 is: 8,472.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.51 : 14,334.41 = 6,138.97 : x
  2. Step 2: Convert to fraction form
    10,386.51/14,334.41 = 6,138.97/x
  3. Step 3: Cross multiply
    10,386.51x = 14,334.41 × 6,138.97
  4. Step 4: Simplify right side
    10,386.51x = 87,998,512.96
  5. Step 5: Solve for x
    x = 87,998,512.96/10,386.51
  6. Step 6: Final answer
    x = 8,472.39

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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.