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Finding the Fourth Proportional to 13,393.08, 20,062.36 and 8,698.86

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Solution

The fourth proportional to 13,393.08, 20,062.36 and 8,698.86 is: 13,030.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,393.08 : 20,062.36 = 8,698.86 : x
  2. Step 2: Convert to fraction form
    13,393.08/20,062.36 = 8,698.86/x
  3. Step 3: Cross multiply
    13,393.08x = 20,062.36 × 8,698.86
  4. Step 4: Simplify right side
    13,393.08x = 174,519,671.78
  5. Step 5: Solve for x
    x = 174,519,671.78/13,393.08
  6. Step 6: Final answer
    x = 13,030.59

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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.