Home / 8,783.62-12,120.96-5,006.88

Finding the Fourth Proportional to 8,783.62, 12,120.96 and 5,006.88

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Solution

The fourth proportional to 8,783.62, 12,120.96 and 5,006.88 is: 6,909.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,783.62 : 12,120.96 = 5,006.88 : x
  2. Step 2: Convert to fraction form
    8,783.62/12,120.96 = 5,006.88/x
  3. Step 3: Cross multiply
    8,783.62x = 12,120.96 × 5,006.88
  4. Step 4: Simplify right side
    8,783.62x = 60,688,192.20
  5. Step 5: Solve for x
    x = 60,688,192.20/8,783.62
  6. Step 6: Final answer
    x = 6,909.25

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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.