Home / 13,716.69-18,929.04-7,429.07

Finding the Fourth Proportional to 13,716.69, 18,929.04 and 7,429.07

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Solution

The fourth proportional to 13,716.69, 18,929.04 and 7,429.07 is: 10,252.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,716.69 : 18,929.04 = 7,429.07 : x
  2. Step 2: Convert to fraction form
    13,716.69/18,929.04 = 7,429.07/x
  3. Step 3: Cross multiply
    13,716.69x = 18,929.04 × 7,429.07
  4. Step 4: Simplify right side
    13,716.69x = 140,625,031.40
  5. Step 5: Solve for x
    x = 140,625,031.40/13,716.69
  6. Step 6: Final answer
    x = 10,252.11

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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.