Home / 12,901.07-17,804.20-9,708.63

Finding the Fourth Proportional to 12,901.07, 17,804.20 and 9,708.63

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Solution

The fourth proportional to 12,901.07, 17,804.20 and 9,708.63 is: 13,398.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,901.07 : 17,804.20 = 9,708.63 : x
  2. Step 2: Convert to fraction form
    12,901.07/17,804.20 = 9,708.63/x
  3. Step 3: Cross multiply
    12,901.07x = 17,804.20 × 9,708.63
  4. Step 4: Simplify right side
    12,901.07x = 172,854,276.95
  5. Step 5: Solve for x
    x = 172,854,276.95/12,901.07
  6. Step 6: Final answer
    x = 13,398.44

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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.