Home / 15,822.64-21,836.55-8,751.34

Finding the Fourth Proportional to 15,822.64, 21,836.55 and 8,751.34

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Solution

The fourth proportional to 15,822.64, 21,836.55 and 8,751.34 is: 12,077.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,822.64 : 21,836.55 = 8,751.34 : x
  2. Step 2: Convert to fraction form
    15,822.64/21,836.55 = 8,751.34/x
  3. Step 3: Cross multiply
    15,822.64x = 21,836.55 × 8,751.34
  4. Step 4: Simplify right side
    15,822.64x = 191,099,073.48
  5. Step 5: Solve for x
    x = 191,099,073.48/15,822.64
  6. Step 6: Final answer
    x = 12,077.57

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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.