Home / 15,064.12-20,783.82-8,772.04

Finding the Fourth Proportional to 15,064.12, 20,783.82 and 8,772.04

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Solution

The fourth proportional to 15,064.12, 20,783.82 and 8,772.04 is: 12,102.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,064.12 : 20,783.82 = 8,772.04 : x
  2. Step 2: Convert to fraction form
    15,064.12/20,783.82 = 8,772.04/x
  3. Step 3: Cross multiply
    15,064.12x = 20,783.82 × 8,772.04
  4. Step 4: Simplify right side
    15,064.12x = 182,316,500.39
  5. Step 5: Solve for x
    x = 182,316,500.39/15,064.12
  6. Step 6: Final answer
    x = 12,102.70

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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.