Home / 8,643.19-12,940.58-4,680.22

Finding the Fourth Proportional to 8,643.19, 12,940.58 and 4,680.22

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Solution

The fourth proportional to 8,643.19, 12,940.58 and 4,680.22 is: 7,007.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,643.19 : 12,940.58 = 4,680.22 : x
  2. Step 2: Convert to fraction form
    8,643.19/12,940.58 = 4,680.22/x
  3. Step 3: Cross multiply
    8,643.19x = 12,940.58 × 4,680.22
  4. Step 4: Simplify right side
    8,643.19x = 60,564,737.93
  5. Step 5: Solve for x
    x = 60,564,737.93/8,643.19
  6. Step 6: Final answer
    x = 7,007.22

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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.