Home / 12,280.12-16,943.88-6,973.72

Finding the Fourth Proportional to 12,280.12, 16,943.88 and 6,973.72

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Solution

The fourth proportional to 12,280.12, 16,943.88 and 6,973.72 is: 9,622.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,280.12 : 16,943.88 = 6,973.72 : x
  2. Step 2: Convert to fraction form
    12,280.12/16,943.88 = 6,973.72/x
  3. Step 3: Cross multiply
    12,280.12x = 16,943.88 × 6,973.72
  4. Step 4: Simplify right side
    12,280.12x = 118,161,874.83
  5. Step 5: Solve for x
    x = 118,161,874.83/12,280.12
  6. Step 6: Final answer
    x = 9,622.21

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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.