Home / 8,706.72-12,015.41-4,727.90

Finding the Fourth Proportional to 8,706.72, 12,015.41 and 4,727.90

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Solution

The fourth proportional to 8,706.72, 12,015.41 and 4,727.90 is: 6,524.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706.72 : 12,015.41 = 4,727.90 : x
  2. Step 2: Convert to fraction form
    8,706.72/12,015.41 = 4,727.90/x
  3. Step 3: Cross multiply
    8,706.72x = 12,015.41 × 4,727.90
  4. Step 4: Simplify right side
    8,706.72x = 56,807,663.34
  5. Step 5: Solve for x
    x = 56,807,663.34/8,706.72
  6. Step 6: Final answer
    x = 6,524.57

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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.