Home / 13,084.48-18,055.84-7,116.08

Finding the Fourth Proportional to 13,084.48, 18,055.84 and 7,116.08

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Solution

The fourth proportional to 13,084.48, 18,055.84 and 7,116.08 is: 9,819.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,084.48 : 18,055.84 = 7,116.08 : x
  2. Step 2: Convert to fraction form
    13,084.48/18,055.84 = 7,116.08/x
  3. Step 3: Cross multiply
    13,084.48x = 18,055.84 × 7,116.08
  4. Step 4: Simplify right side
    13,084.48x = 128,486,801.91
  5. Step 5: Solve for x
    x = 128,486,801.91/13,084.48
  6. Step 6: Final answer
    x = 9,819.79

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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.