Home / 13,709.24-18,929.45-10,517.48

Finding the Fourth Proportional to 13,709.24, 18,929.45 and 10,517.48

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Solution

The fourth proportional to 13,709.24, 18,929.45 and 10,517.48 is: 14,522.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,709.24 : 18,929.45 = 10,517.48 : x
  2. Step 2: Convert to fraction form
    13,709.24/18,929.45 = 10,517.48/x
  3. Step 3: Cross multiply
    13,709.24x = 18,929.45 × 10,517.48
  4. Step 4: Simplify right side
    13,709.24x = 199,090,081.88
  5. Step 5: Solve for x
    x = 199,090,081.88/13,709.24
  6. Step 6: Final answer
    x = 14,522.32

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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.