Home / 15,934.92-21,989.77-8,764.46

Finding the Fourth Proportional to 15,934.92, 21,989.77 and 8,764.46

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Solution

The fourth proportional to 15,934.92, 21,989.77 and 8,764.46 is: 12,094.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,934.92 : 21,989.77 = 8,764.46 : x
  2. Step 2: Convert to fraction form
    15,934.92/21,989.77 = 8,764.46/x
  3. Step 3: Cross multiply
    15,934.92x = 21,989.77 × 8,764.46
  4. Step 4: Simplify right side
    15,934.92x = 192,728,459.57
  5. Step 5: Solve for x
    x = 192,728,459.57/15,934.92
  6. Step 6: Final answer
    x = 12,094.72

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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.