Home / 11,320.83-15,619.59-7,076.16

Finding the Fourth Proportional to 11,320.83, 15,619.59 and 7,076.16

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Solution

The fourth proportional to 11,320.83, 15,619.59 and 7,076.16 is: 9,763.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.83 : 15,619.59 = 7,076.16 : x
  2. Step 2: Convert to fraction form
    11,320.83/15,619.59 = 7,076.16/x
  3. Step 3: Cross multiply
    11,320.83x = 15,619.59 × 7,076.16
  4. Step 4: Simplify right side
    11,320.83x = 110,526,717.97
  5. Step 5: Solve for x
    x = 110,526,717.97/11,320.83
  6. Step 6: Final answer
    x = 9,763.13

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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.