Home / 15,301.32-21,116.13-8,587.44

Finding the Fourth Proportional to 15,301.32, 21,116.13 and 8,587.44

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Solution

The fourth proportional to 15,301.32, 21,116.13 and 8,587.44 is: 11,850.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,301.32 : 21,116.13 = 8,587.44 : x
  2. Step 2: Convert to fraction form
    15,301.32/21,116.13 = 8,587.44/x
  3. Step 3: Cross multiply
    15,301.32x = 21,116.13 × 8,587.44
  4. Step 4: Simplify right side
    15,301.32x = 181,333,499.41
  5. Step 5: Solve for x
    x = 181,333,499.41/15,301.32
  6. Step 6: Final answer
    x = 11,850.84

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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.