Home / 10,066.61-15,110.96-7,999.90

Finding the Fourth Proportional to 10,066.61, 15,110.96 and 7,999.90

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Solution

The fourth proportional to 10,066.61, 15,110.96 and 7,999.90 is: 12,008.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,066.61 : 15,110.96 = 7,999.90 : x
  2. Step 2: Convert to fraction form
    10,066.61/15,110.96 = 7,999.90/x
  3. Step 3: Cross multiply
    10,066.61x = 15,110.96 × 7,999.90
  4. Step 4: Simplify right side
    10,066.61x = 120,886,091.13
  5. Step 5: Solve for x
    x = 120,886,091.13/10,066.61
  6. Step 6: Final answer
    x = 12,008.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.