Home / 11,290.74-15,581.78-6,814.41

Finding the Fourth Proportional to 11,290.74, 15,581.78 and 6,814.41

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Solution

The fourth proportional to 11,290.74, 15,581.78 and 6,814.41 is: 9,404.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,290.74 : 15,581.78 = 6,814.41 : x
  2. Step 2: Convert to fraction form
    11,290.74/15,581.78 = 6,814.41/x
  3. Step 3: Cross multiply
    11,290.74x = 15,581.78 × 6,814.41
  4. Step 4: Simplify right side
    11,290.74x = 106,180,637.45
  5. Step 5: Solve for x
    x = 106,180,637.45/11,290.74
  6. Step 6: Final answer
    x = 9,404.22

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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.