Home / 10,742.09-16,119.61-4,173.80

Finding the Fourth Proportional to 10,742.09, 16,119.61 and 4,173.80

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Solution

The fourth proportional to 10,742.09, 16,119.61 and 4,173.80 is: 6,263.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,742.09 : 16,119.61 = 4,173.80 : x
  2. Step 2: Convert to fraction form
    10,742.09/16,119.61 = 4,173.80/x
  3. Step 3: Cross multiply
    10,742.09x = 16,119.61 × 4,173.80
  4. Step 4: Simplify right side
    10,742.09x = 67,279,937.19
  5. Step 5: Solve for x
    x = 67,279,937.19/10,742.09
  6. Step 6: Final answer
    x = 6,263.21

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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.