Home / 15,829.37-21,844.28-8,659.10

Finding the Fourth Proportional to 15,829.37, 21,844.28 and 8,659.10

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Solution

The fourth proportional to 15,829.37, 21,844.28 and 8,659.10 is: 11,949.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,829.37 : 21,844.28 = 8,659.10 : x
  2. Step 2: Convert to fraction form
    15,829.37/21,844.28 = 8,659.10/x
  3. Step 3: Cross multiply
    15,829.37x = 21,844.28 × 8,659.10
  4. Step 4: Simplify right side
    15,829.37x = 189,151,881.21
  5. Step 5: Solve for x
    x = 189,151,881.21/15,829.37
  6. Step 6: Final answer
    x = 11,949.42

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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.