Home / 11,903.79-16,429.17-9,066.63

Finding the Fourth Proportional to 11,903.79, 16,429.17 and 9,066.63

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Solution

The fourth proportional to 11,903.79, 16,429.17 and 9,066.63 is: 12,513.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,903.79 : 16,429.17 = 9,066.63 : x
  2. Step 2: Convert to fraction form
    11,903.79/16,429.17 = 9,066.63/x
  3. Step 3: Cross multiply
    11,903.79x = 16,429.17 × 9,066.63
  4. Step 4: Simplify right side
    11,903.79x = 148,957,205.60
  5. Step 5: Solve for x
    x = 148,957,205.60/11,903.79
  6. Step 6: Final answer
    x = 12,513.43

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Double scale
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Similar ratio
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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.