Home / 11,297.28-15,585.12-8,935.68

Finding the Fourth Proportional to 11,297.28, 15,585.12 and 8,935.68

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Solution

The fourth proportional to 11,297.28, 15,585.12 and 8,935.68 is: 12,327.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,297.28 : 15,585.12 = 8,935.68 : x
  2. Step 2: Convert to fraction form
    11,297.28/15,585.12 = 8,935.68/x
  3. Step 3: Cross multiply
    11,297.28x = 15,585.12 × 8,935.68
  4. Step 4: Simplify right side
    11,297.28x = 139,263,645.08
  5. Step 5: Solve for x
    x = 139,263,645.08/11,297.28
  6. Step 6: Final answer
    x = 12,327.18

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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.