Home / 15,386.12-21,233.22-8,672.04

Finding the Fourth Proportional to 15,386.12, 21,233.22 and 8,672.04

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Solution

The fourth proportional to 15,386.12, 21,233.22 and 8,672.04 is: 11,967.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,386.12 : 21,233.22 = 8,672.04 : x
  2. Step 2: Convert to fraction form
    15,386.12/21,233.22 = 8,672.04/x
  3. Step 3: Cross multiply
    15,386.12x = 21,233.22 × 8,672.04
  4. Step 4: Simplify right side
    15,386.12x = 184,135,333.17
  5. Step 5: Solve for x
    x = 184,135,333.17/15,386.12
  6. Step 6: Final answer
    x = 11,967.63

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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.