Home / 15,055.66-20,776.26-8,682.52

Finding the Fourth Proportional to 15,055.66, 20,776.26 and 8,682.52

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Solution

The fourth proportional to 15,055.66, 20,776.26 and 8,682.52 is: 11,981.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,055.66 : 20,776.26 = 8,682.52 : x
  2. Step 2: Convert to fraction form
    15,055.66/20,776.26 = 8,682.52/x
  3. Step 3: Cross multiply
    15,055.66x = 20,776.26 × 8,682.52
  4. Step 4: Simplify right side
    15,055.66x = 180,390,287.55
  5. Step 5: Solve for x
    x = 180,390,287.55/15,055.66
  6. Step 6: Final answer
    x = 11,981.56

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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.