Home / 10,818.50-16,199.40-8,698.86

Finding the Fourth Proportional to 10,818.50, 16,199.40 and 8,698.86

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Solution

The fourth proportional to 10,818.50, 16,199.40 and 8,698.86 is: 13,025.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,818.50 : 16,199.40 = 8,698.86 : x
  2. Step 2: Convert to fraction form
    10,818.50/16,199.40 = 8,698.86/x
  3. Step 3: Cross multiply
    10,818.50x = 16,199.40 × 8,698.86
  4. Step 4: Simplify right side
    10,818.50x = 140,916,312.68
  5. Step 5: Solve for x
    x = 140,916,312.68/10,818.50
  6. Step 6: Final answer
    x = 13,025.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.