Home / 15,103.17-20,842.62-8,389.23

Finding the Fourth Proportional to 15,103.17, 20,842.62 and 8,389.23

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Solution

The fourth proportional to 15,103.17, 20,842.62 and 8,389.23 is: 11,577.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,103.17 : 20,842.62 = 8,389.23 : x
  2. Step 2: Convert to fraction form
    15,103.17/20,842.62 = 8,389.23/x
  3. Step 3: Cross multiply
    15,103.17x = 20,842.62 × 8,389.23
  4. Step 4: Simplify right side
    15,103.17x = 174,853,532.98
  5. Step 5: Solve for x
    x = 174,853,532.98/15,103.17
  6. Step 6: Final answer
    x = 11,577.27

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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.