Home / 12,746.47-17,604.84-8,490.52

Finding the Fourth Proportional to 12,746.47, 17,604.84 and 8,490.52

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Solution

The fourth proportional to 12,746.47, 17,604.84 and 8,490.52 is: 11,726.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,746.47 : 17,604.84 = 8,490.52 : x
  2. Step 2: Convert to fraction form
    12,746.47/17,604.84 = 8,490.52/x
  3. Step 3: Cross multiply
    12,746.47x = 17,604.84 × 8,490.52
  4. Step 4: Simplify right side
    12,746.47x = 149,474,158.09
  5. Step 5: Solve for x
    x = 149,474,158.09/12,746.47
  6. Step 6: Final answer
    x = 11,726.71

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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.