Home / 10,861.83-16,292.75-6,990.84

Finding the Fourth Proportional to 10,861.83, 16,292.75 and 6,990.84

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Solution

The fourth proportional to 10,861.83, 16,292.75 and 6,990.84 is: 10,486.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.83 : 16,292.75 = 6,990.84 : x
  2. Step 2: Convert to fraction form
    10,861.83/16,292.75 = 6,990.84/x
  3. Step 3: Cross multiply
    10,861.83x = 16,292.75 × 6,990.84
  4. Step 4: Simplify right side
    10,861.83x = 113,899,973.46
  5. Step 5: Solve for x
    x = 113,899,973.46/10,861.83
  6. Step 6: Final answer
    x = 10,486.26

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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.