Home / 18,778.34-25,920.62-11,613.74

Finding the Fourth Proportional to 18,778.34, 25,920.62 and 11,613.74

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Solution

The fourth proportional to 18,778.34, 25,920.62 and 11,613.74 is: 16,030.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,778.34 : 25,920.62 = 11,613.74 : x
  2. Step 2: Convert to fraction form
    18,778.34/25,920.62 = 11,613.74/x
  3. Step 3: Cross multiply
    18,778.34x = 25,920.62 × 11,613.74
  4. Step 4: Simplify right side
    18,778.34x = 301,035,341.32
  5. Step 5: Solve for x
    x = 301,035,341.32/18,778.34
  6. Step 6: Final answer
    x = 16,030.99

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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.