Home / 14,663.61-20,235.26-8,691.75

Finding the Fourth Proportional to 14,663.61, 20,235.26 and 8,691.75

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Solution

The fourth proportional to 14,663.61, 20,235.26 and 8,691.75 is: 11,994.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,663.61 : 20,235.26 = 8,691.75 : x
  2. Step 2: Convert to fraction form
    14,663.61/20,235.26 = 8,691.75/x
  3. Step 3: Cross multiply
    14,663.61x = 20,235.26 × 8,691.75
  4. Step 4: Simplify right side
    14,663.61x = 175,879,777.65
  5. Step 5: Solve for x
    x = 175,879,777.65/14,663.61
  6. Step 6: Final answer
    x = 11,994.30

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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.