Home / 15,656.96-21,627.34-11,671.16

Finding the Fourth Proportional to 15,656.96, 21,627.34 and 11,671.16

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Solution

The fourth proportional to 15,656.96, 21,627.34 and 11,671.16 is: 16,121.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,656.96 : 21,627.34 = 11,671.16 : x
  2. Step 2: Convert to fraction form
    15,656.96/21,627.34 = 11,671.16/x
  3. Step 3: Cross multiply
    15,656.96x = 21,627.34 × 11,671.16
  4. Step 4: Simplify right side
    15,656.96x = 252,416,145.51
  5. Step 5: Solve for x
    x = 252,416,145.51/15,656.96
  6. Step 6: Final answer
    x = 16,121.66

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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.