Home / 15,272.27-21,077.21-8,559.03

Finding the Fourth Proportional to 15,272.27, 21,077.21 and 8,559.03

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Solution

The fourth proportional to 15,272.27, 21,077.21 and 8,559.03 is: 11,812.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,272.27 : 21,077.21 = 8,559.03 : x
  2. Step 2: Convert to fraction form
    15,272.27/21,077.21 = 8,559.03/x
  3. Step 3: Cross multiply
    15,272.27x = 21,077.21 × 8,559.03
  4. Step 4: Simplify right side
    15,272.27x = 180,400,484.22
  5. Step 5: Solve for x
    x = 180,400,484.22/15,272.27
  6. Step 6: Final answer
    x = 11,812.29

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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.