Home / 20,466.13-28,243.06-11,513.68

Finding the Fourth Proportional to 20,466.13, 28,243.06 and 11,513.68

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Solution

The fourth proportional to 20,466.13, 28,243.06 and 11,513.68 is: 15,888.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466.13 : 28,243.06 = 11,513.68 : x
  2. Step 2: Convert to fraction form
    20,466.13/28,243.06 = 11,513.68/x
  3. Step 3: Cross multiply
    20,466.13x = 28,243.06 × 11,513.68
  4. Step 4: Simplify right side
    20,466.13x = 325,181,356.28
  5. Step 5: Solve for x
    x = 325,181,356.28/20,466.13
  6. Step 6: Final answer
    x = 15,888.76

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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.