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Finding the Fourth Proportional to 12,937.94, 19,406.91 and 10,328.66

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Solution

The fourth proportional to 12,937.94, 19,406.91 and 10,328.66 is: 15,492.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,937.94 : 19,406.91 = 10,328.66 : x
  2. Step 2: Convert to fraction form
    12,937.94/19,406.91 = 10,328.66/x
  3. Step 3: Cross multiply
    12,937.94x = 19,406.91 × 10,328.66
  4. Step 4: Simplify right side
    12,937.94x = 200,447,375.04
  5. Step 5: Solve for x
    x = 200,447,375.04/12,937.94
  6. Step 6: Final answer
    x = 15,492.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.