Home / 15,661.04-21,612.50-8,587.37

Finding the Fourth Proportional to 15,661.04, 21,612.50 and 8,587.37

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Solution

The fourth proportional to 15,661.04, 21,612.50 and 8,587.37 is: 11,850.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,661.04 : 21,612.50 = 8,587.37 : x
  2. Step 2: Convert to fraction form
    15,661.04/21,612.50 = 8,587.37/x
  3. Step 3: Cross multiply
    15,661.04x = 21,612.50 × 8,587.37
  4. Step 4: Simplify right side
    15,661.04x = 185,594,383.13
  5. Step 5: Solve for x
    x = 185,594,383.13/15,661.04
  6. Step 6: Final answer
    x = 11,850.71

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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.