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Finding the Fourth Proportional to 12,798.58, 17,610.84 and 9,813.28

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Solution

The fourth proportional to 12,798.58, 17,610.84 and 9,813.28 is: 13,503.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798.58 : 17,610.84 = 9,813.28 : x
  2. Step 2: Convert to fraction form
    12,798.58/17,610.84 = 9,813.28/x
  3. Step 3: Cross multiply
    12,798.58x = 17,610.84 × 9,813.28
  4. Step 4: Simplify right side
    12,798.58x = 172,820,103.96
  5. Step 5: Solve for x
    x = 172,820,103.96/12,798.58
  6. Step 6: Final answer
    x = 13,503.07

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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.