Home / 13,416.61-18,515.31-7,367.14

Finding the Fourth Proportional to 13,416.61, 18,515.31 and 7,367.14

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Solution

The fourth proportional to 13,416.61, 18,515.31 and 7,367.14 is: 10,166.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.61 : 18,515.31 = 7,367.14 : x
  2. Step 2: Convert to fraction form
    13,416.61/18,515.31 = 7,367.14/x
  3. Step 3: Cross multiply
    13,416.61x = 18,515.31 × 7,367.14
  4. Step 4: Simplify right side
    13,416.61x = 136,404,880.91
  5. Step 5: Solve for x
    x = 136,404,880.91/13,416.61
  6. Step 6: Final answer
    x = 10,166.87

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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.