Home / 8,812.32-13,219.26-3,191.40

Finding the Fourth Proportional to 8,812.32, 13,219.26 and 3,191.40

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Solution

The fourth proportional to 8,812.32, 13,219.26 and 3,191.40 is: 4,787.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.32 : 13,219.26 = 3,191.40 : x
  2. Step 2: Convert to fraction form
    8,812.32/13,219.26 = 3,191.40/x
  3. Step 3: Cross multiply
    8,812.32x = 13,219.26 × 3,191.40
  4. Step 4: Simplify right side
    8,812.32x = 42,187,946.36
  5. Step 5: Solve for x
    x = 42,187,946.36/8,812.32
  6. Step 6: Final answer
    x = 4,787.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.