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Finding the Fourth Proportional to 12,671.29, 17,485.36 and 7,366.38

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Solution

The fourth proportional to 12,671.29, 17,485.36 and 7,366.38 is: 10,165.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671.29 : 17,485.36 = 7,366.38 : x
  2. Step 2: Convert to fraction form
    12,671.29/17,485.36 = 7,366.38/x
  3. Step 3: Cross multiply
    12,671.29x = 17,485.36 × 7,366.38
  4. Step 4: Simplify right side
    12,671.29x = 128,803,806.20
  5. Step 5: Solve for x
    x = 128,803,806.20/12,671.29
  6. Step 6: Final answer
    x = 10,165.01

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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.