Home / 15,171.24-20,937.06-8,457.42

Finding the Fourth Proportional to 15,171.24, 20,937.06 and 8,457.42

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Solution

The fourth proportional to 15,171.24, 20,937.06 and 8,457.42 is: 11,671.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,171.24 : 20,937.06 = 8,457.42 : x
  2. Step 2: Convert to fraction form
    15,171.24/20,937.06 = 8,457.42/x
  3. Step 3: Cross multiply
    15,171.24x = 20,937.06 × 8,457.42
  4. Step 4: Simplify right side
    15,171.24x = 177,073,509.99
  5. Step 5: Solve for x
    x = 177,073,509.99/15,171.24
  6. Step 6: Final answer
    x = 11,671.66

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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.