Home / 10,861.78-16,292.67-3,070.80

Finding the Fourth Proportional to 10,861.78, 16,292.67 and 3,070.80

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Solution

The fourth proportional to 10,861.78, 16,292.67 and 3,070.80 is: 4,606.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.78 : 16,292.67 = 3,070.80 : x
  2. Step 2: Convert to fraction form
    10,861.78/16,292.67 = 3,070.80/x
  3. Step 3: Cross multiply
    10,861.78x = 16,292.67 × 3,070.80
  4. Step 4: Simplify right side
    10,861.78x = 50,031,531.04
  5. Step 5: Solve for x
    x = 50,031,531.04/10,861.78
  6. Step 6: Final answer
    x = 4,606.20

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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.