Home / 10,666.13-15,999.27-6,991.62

Finding the Fourth Proportional to 10,666.13, 15,999.27 and 6,991.62

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Solution

The fourth proportional to 10,666.13, 15,999.27 and 6,991.62 is: 10,487.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,666.13 : 15,999.27 = 6,991.62 : x
  2. Step 2: Convert to fraction form
    10,666.13/15,999.27 = 6,991.62/x
  3. Step 3: Cross multiply
    10,666.13x = 15,999.27 × 6,991.62
  4. Step 4: Simplify right side
    10,666.13x = 111,860,816.12
  5. Step 5: Solve for x
    x = 111,860,816.12/10,666.13
  6. Step 6: Final answer
    x = 10,487.48

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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.