Home / 14,778.91-20,398.40-8,494.93

Finding the Fourth Proportional to 14,778.91, 20,398.40 and 8,494.93

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Solution

The fourth proportional to 14,778.91, 20,398.40 and 8,494.93 is: 11,725.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,778.91 : 20,398.40 = 8,494.93 : x
  2. Step 2: Convert to fraction form
    14,778.91/20,398.40 = 8,494.93/x
  3. Step 3: Cross multiply
    14,778.91x = 20,398.40 × 8,494.93
  4. Step 4: Simplify right side
    14,778.91x = 173,282,980.11
  5. Step 5: Solve for x
    x = 173,282,980.11/14,778.91
  6. Step 6: Final answer
    x = 11,725.02

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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.