Home / 13,304.16-18,355.32-9,959.04

Finding the Fourth Proportional to 13,304.16, 18,355.32 and 9,959.04

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Solution

The fourth proportional to 13,304.16, 18,355.32 and 9,959.04 is: 13,740.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,304.16 : 18,355.32 = 9,959.04 : x
  2. Step 2: Convert to fraction form
    13,304.16/18,355.32 = 9,959.04/x
  3. Step 3: Cross multiply
    13,304.16x = 18,355.32 × 9,959.04
  4. Step 4: Simplify right side
    13,304.16x = 182,801,366.09
  5. Step 5: Solve for x
    x = 182,801,366.09/13,304.16
  6. Step 6: Final answer
    x = 13,740.17

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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.