Home / 13,387.86-20,086.65-4,623.66

Finding the Fourth Proportional to 13,387.86, 20,086.65 and 4,623.66

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Solution

The fourth proportional to 13,387.86, 20,086.65 and 4,623.66 is: 6,937.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.86 : 20,086.65 = 4,623.66 : x
  2. Step 2: Convert to fraction form
    13,387.86/20,086.65 = 4,623.66/x
  3. Step 3: Cross multiply
    13,387.86x = 20,086.65 × 4,623.66
  4. Step 4: Simplify right side
    13,387.86x = 92,873,840.14
  5. Step 5: Solve for x
    x = 92,873,840.14/13,387.86
  6. Step 6: Final answer
    x = 6,937.17

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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.