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Finding the Fourth Proportional to 12,798.94, 17,646.60 and 10,677.55

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Solution

The fourth proportional to 12,798.94, 17,646.60 and 10,677.55 is: 14,721.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798.94 : 17,646.60 = 10,677.55 : x
  2. Step 2: Convert to fraction form
    12,798.94/17,646.60 = 10,677.55/x
  3. Step 3: Cross multiply
    12,798.94x = 17,646.60 × 10,677.55
  4. Step 4: Simplify right side
    12,798.94x = 188,422,453.83
  5. Step 5: Solve for x
    x = 188,422,453.83/12,798.94
  6. Step 6: Final answer
    x = 14,721.72

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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.