Home / 15,617.12-23,420.86-8,217.56

Finding the Fourth Proportional to 15,617.12, 23,420.86 and 8,217.56

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Solution

The fourth proportional to 15,617.12, 23,420.86 and 8,217.56 is: 12,323.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,617.12 : 23,420.86 = 8,217.56 : x
  2. Step 2: Convert to fraction form
    15,617.12/23,420.86 = 8,217.56/x
  3. Step 3: Cross multiply
    15,617.12x = 23,420.86 × 8,217.56
  4. Step 4: Simplify right side
    15,617.12x = 192,462,322.30
  5. Step 5: Solve for x
    x = 192,462,322.30/15,617.12
  6. Step 6: Final answer
    x = 12,323.80

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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.