Home / 10,305.86-14,211.38-8,818.70

Finding the Fourth Proportional to 10,305.86, 14,211.38 and 8,818.70

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Solution

The fourth proportional to 10,305.86, 14,211.38 and 8,818.70 is: 12,160.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,305.86 : 14,211.38 = 8,818.70 : x
  2. Step 2: Convert to fraction form
    10,305.86/14,211.38 = 8,818.70/x
  3. Step 3: Cross multiply
    10,305.86x = 14,211.38 × 8,818.70
  4. Step 4: Simplify right side
    10,305.86x = 125,325,896.81
  5. Step 5: Solve for x
    x = 125,325,896.81/10,305.86
  6. Step 6: Final answer
    x = 12,160.64

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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.