Home / 8,783.65-12,120.96-5,006.35

Finding the Fourth Proportional to 8,783.65, 12,120.96 and 5,006.35

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Solution

The fourth proportional to 8,783.65, 12,120.96 and 5,006.35 is: 6,908.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,783.65 : 12,120.96 = 5,006.35 : x
  2. Step 2: Convert to fraction form
    8,783.65/12,120.96 = 5,006.35/x
  3. Step 3: Cross multiply
    8,783.65x = 12,120.96 × 5,006.35
  4. Step 4: Simplify right side
    8,783.65x = 60,681,768.10
  5. Step 5: Solve for x
    x = 60,681,768.10/8,783.65
  6. Step 6: Final answer
    x = 6,908.49

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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.