Home / 15,051.93-20,776.32-8,682.81

Finding the Fourth Proportional to 15,051.93, 20,776.32 and 8,682.81

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Solution

The fourth proportional to 15,051.93, 20,776.32 and 8,682.81 is: 11,984.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,051.93 : 20,776.32 = 8,682.81 : x
  2. Step 2: Convert to fraction form
    15,051.93/20,776.32 = 8,682.81/x
  3. Step 3: Cross multiply
    15,051.93x = 20,776.32 × 8,682.81
  4. Step 4: Simplify right side
    15,051.93x = 180,396,839.06
  5. Step 5: Solve for x
    x = 180,396,839.06/15,051.93
  6. Step 6: Final answer
    x = 11,984.96

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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.