Home / 14,587.86-20,131.16-8,214.65

Finding the Fourth Proportional to 14,587.86, 20,131.16 and 8,214.65

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Solution

The fourth proportional to 14,587.86, 20,131.16 and 8,214.65 is: 11,336.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,587.86 : 20,131.16 = 8,214.65 : x
  2. Step 2: Convert to fraction form
    14,587.86/20,131.16 = 8,214.65/x
  3. Step 3: Cross multiply
    14,587.86x = 20,131.16 × 8,214.65
  4. Step 4: Simplify right side
    14,587.86x = 165,370,291.76
  5. Step 5: Solve for x
    x = 165,370,291.76/14,587.86
  6. Step 6: Final answer
    x = 11,336.16

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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.