Home / 7,816.16-11,728.86-2,889.26

Finding the Fourth Proportional to 7,816.16, 11,728.86 and 2,889.26

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Solution

The fourth proportional to 7,816.16, 11,728.86 and 2,889.26 is: 4,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.16 : 11,728.86 = 2,889.26 : x
  2. Step 2: Convert to fraction form
    7,816.16/11,728.86 = 2,889.26/x
  3. Step 3: Cross multiply
    7,816.16x = 11,728.86 × 2,889.26
  4. Step 4: Simplify right side
    7,816.16x = 33,887,726.04
  5. Step 5: Solve for x
    x = 33,887,726.04/7,816.16
  6. Step 6: Final answer
    x = 4,335.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.