Home / 12,038.75-16,615.77-8,066.79

Finding the Fourth Proportional to 12,038.75, 16,615.77 and 8,066.79

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Solution

The fourth proportional to 12,038.75, 16,615.77 and 8,066.79 is: 11,133.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,038.75 : 16,615.77 = 8,066.79 : x
  2. Step 2: Convert to fraction form
    12,038.75/16,615.77 = 8,066.79/x
  3. Step 3: Cross multiply
    12,038.75x = 16,615.77 × 8,066.79
  4. Step 4: Simplify right side
    12,038.75x = 134,035,927.28
  5. Step 5: Solve for x
    x = 134,035,927.28/12,038.75
  6. Step 6: Final answer
    x = 11,133.71

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Half scale
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Double scale
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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.