Home / 16,188.81-22,341.06-8,920.55

Finding the Fourth Proportional to 16,188.81, 22,341.06 and 8,920.55

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Solution

The fourth proportional to 16,188.81, 22,341.06 and 8,920.55 is: 12,310.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,188.81 : 22,341.06 = 8,920.55 : x
  2. Step 2: Convert to fraction form
    16,188.81/22,341.06 = 8,920.55/x
  3. Step 3: Cross multiply
    16,188.81x = 22,341.06 × 8,920.55
  4. Step 4: Simplify right side
    16,188.81x = 199,294,431.08
  5. Step 5: Solve for x
    x = 199,294,431.08/16,188.81
  6. Step 6: Final answer
    x = 12,310.63

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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.