Home / 15,184.30-20,950.77-9,215.83

Finding the Fourth Proportional to 15,184.30, 20,950.77 and 9,215.83

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Solution

The fourth proportional to 15,184.30, 20,950.77 and 9,215.83 is: 12,715.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,184.30 : 20,950.77 = 9,215.83 : x
  2. Step 2: Convert to fraction form
    15,184.30/20,950.77 = 9,215.83/x
  3. Step 3: Cross multiply
    15,184.30x = 20,950.77 × 9,215.83
  4. Step 4: Simplify right side
    15,184.30x = 193,078,734.69
  5. Step 5: Solve for x
    x = 193,078,734.69/15,184.30
  6. Step 6: Final answer
    x = 12,715.68

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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.