Home / 12,281.43-16,947.13-6,975.21

Finding the Fourth Proportional to 12,281.43, 16,947.13 and 6,975.21

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Solution

The fourth proportional to 12,281.43, 16,947.13 and 6,975.21 is: 9,625.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281.43 : 16,947.13 = 6,975.21 : x
  2. Step 2: Convert to fraction form
    12,281.43/16,947.13 = 6,975.21/x
  3. Step 3: Cross multiply
    12,281.43x = 16,947.13 × 6,975.21
  4. Step 4: Simplify right side
    12,281.43x = 118,209,790.65
  5. Step 5: Solve for x
    x = 118,209,790.65/12,281.43
  6. Step 6: Final answer
    x = 9,625.08

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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.