Home / 14,143.14-19,513.13-8,172.63

Finding the Fourth Proportional to 14,143.14, 19,513.13 and 8,172.63

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Solution

The fourth proportional to 14,143.14, 19,513.13 and 8,172.63 is: 11,275.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.14 : 19,513.13 = 8,172.63 : x
  2. Step 2: Convert to fraction form
    14,143.14/19,513.13 = 8,172.63/x
  3. Step 3: Cross multiply
    14,143.14x = 19,513.13 × 8,172.63
  4. Step 4: Simplify right side
    14,143.14x = 159,473,591.63
  5. Step 5: Solve for x
    x = 159,473,591.63/14,143.14
  6. Step 6: Final answer
    x = 11,275.69

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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.