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Finding the Fourth Proportional to 8,698.53, 13,047.80 and 4,311.57

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Solution

The fourth proportional to 8,698.53, 13,047.80 and 4,311.57 is: 6,467.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,698.53 : 13,047.80 = 4,311.57 : x
  2. Step 2: Convert to fraction form
    8,698.53/13,047.80 = 4,311.57/x
  3. Step 3: Cross multiply
    8,698.53x = 13,047.80 × 4,311.57
  4. Step 4: Simplify right side
    8,698.53x = 56,256,503.05
  5. Step 5: Solve for x
    x = 56,256,503.05/8,698.53
  6. Step 6: Final answer
    x = 6,467.36

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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.