Home / 15,173.04-20,936.72-8,457.86

Finding the Fourth Proportional to 15,173.04, 20,936.72 and 8,457.86

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Solution

The fourth proportional to 15,173.04, 20,936.72 and 8,457.86 is: 11,670.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,173.04 : 20,936.72 = 8,457.86 : x
  2. Step 2: Convert to fraction form
    15,173.04/20,936.72 = 8,457.86/x
  3. Step 3: Cross multiply
    15,173.04x = 20,936.72 × 8,457.86
  4. Step 4: Simplify right side
    15,173.04x = 177,079,846.62
  5. Step 5: Solve for x
    x = 177,079,846.62/15,173.04
  6. Step 6: Final answer
    x = 11,670.69

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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.