Home / 12,217.36-16,867.59-8,395.58

Finding the Fourth Proportional to 12,217.36, 16,867.59 and 8,395.58

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Solution

The fourth proportional to 12,217.36, 16,867.59 and 8,395.58 is: 11,591.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.36 : 16,867.59 = 8,395.58 : x
  2. Step 2: Convert to fraction form
    12,217.36/16,867.59 = 8,395.58/x
  3. Step 3: Cross multiply
    12,217.36x = 16,867.59 × 8,395.58
  4. Step 4: Simplify right side
    12,217.36x = 141,613,159.08
  5. Step 5: Solve for x
    x = 141,613,159.08/12,217.36
  6. Step 6: Final answer
    x = 11,591.14

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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.