Home / 16,211.20-22,370.70-10,905.16

Finding the Fourth Proportional to 16,211.20, 22,370.70 and 10,905.16

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Solution

The fourth proportional to 16,211.20, 22,370.70 and 10,905.16 is: 15,048.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,211.20 : 22,370.70 = 10,905.16 : x
  2. Step 2: Convert to fraction form
    16,211.20/22,370.70 = 10,905.16/x
  3. Step 3: Cross multiply
    16,211.20x = 22,370.70 × 10,905.16
  4. Step 4: Simplify right side
    16,211.20x = 243,956,062.81
  5. Step 5: Solve for x
    x = 243,956,062.81/16,211.20
  6. Step 6: Final answer
    x = 15,048.61

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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.