Home / 10,861.76-14,984.70-6,611.24

Finding the Fourth Proportional to 10,861.76, 14,984.70 and 6,611.24

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Solution

The fourth proportional to 10,861.76, 14,984.70 and 6,611.24 is: 9,120.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.76 : 14,984.70 = 6,611.24 : x
  2. Step 2: Convert to fraction form
    10,861.76/14,984.70 = 6,611.24/x
  3. Step 3: Cross multiply
    10,861.76x = 14,984.70 × 6,611.24
  4. Step 4: Simplify right side
    10,861.76x = 99,067,448.03
  5. Step 5: Solve for x
    x = 99,067,448.03/10,861.76
  6. Step 6: Final answer
    x = 9,120.75

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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.