Home / 13,694.04-18,907.02-8,986.32

Finding the Fourth Proportional to 13,694.04, 18,907.02 and 8,986.32

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Solution

The fourth proportional to 13,694.04, 18,907.02 and 8,986.32 is: 12,407.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,694.04 : 18,907.02 = 8,986.32 : x
  2. Step 2: Convert to fraction form
    13,694.04/18,907.02 = 8,986.32/x
  3. Step 3: Cross multiply
    13,694.04x = 18,907.02 × 8,986.32
  4. Step 4: Simplify right side
    13,694.04x = 169,904,531.97
  5. Step 5: Solve for x
    x = 169,904,531.97/13,694.04
  6. Step 6: Final answer
    x = 12,407.19

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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.