Home / 15,301.32-21,115.94-8,587.10

Finding the Fourth Proportional to 15,301.32, 21,115.94 and 8,587.10

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Solution

The fourth proportional to 15,301.32, 21,115.94 and 8,587.10 is: 11,850.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,301.32 : 21,115.94 = 8,587.10 : x
  2. Step 2: Convert to fraction form
    15,301.32/21,115.94 = 8,587.10/x
  3. Step 3: Cross multiply
    15,301.32x = 21,115.94 × 8,587.10
  4. Step 4: Simplify right side
    15,301.32x = 181,324,539.86
  5. Step 5: Solve for x
    x = 181,324,539.86/15,301.32
  6. Step 6: Final answer
    x = 11,850.25

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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.