Home / 15,979.16-22,029.72-11,192.64

Finding the Fourth Proportional to 15,979.16, 22,029.72 and 11,192.64

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Solution

The fourth proportional to 15,979.16, 22,029.72 and 11,192.64 is: 15,430.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,979.16 : 22,029.72 = 11,192.64 : x
  2. Step 2: Convert to fraction form
    15,979.16/22,029.72 = 11,192.64/x
  3. Step 3: Cross multiply
    15,979.16x = 22,029.72 × 11,192.64
  4. Step 4: Simplify right side
    15,979.16x = 246,570,725.26
  5. Step 5: Solve for x
    x = 246,570,725.26/15,979.16
  6. Step 6: Final answer
    x = 15,430.77

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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.