Home / 13,723.86-20,588.70-5,290.58

Finding the Fourth Proportional to 13,723.86, 20,588.70 and 5,290.58

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Solution

The fourth proportional to 13,723.86, 20,588.70 and 5,290.58 is: 7,937.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.86 : 20,588.70 = 5,290.58 : x
  2. Step 2: Convert to fraction form
    13,723.86/20,588.70 = 5,290.58/x
  3. Step 3: Cross multiply
    13,723.86x = 20,588.70 × 5,290.58
  4. Step 4: Simplify right side
    13,723.86x = 108,926,215.92
  5. Step 5: Solve for x
    x = 108,926,215.92/13,723.86
  6. Step 6: Final answer
    x = 7,937.00

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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.