Home / 12,293-16,964.34-6,987.81

Finding the Fourth Proportional to 12,293, 16,964.34 and 6,987.81

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Solution

The fourth proportional to 12,293, 16,964.34 and 6,987.81 is: 9,643.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,293 : 16,964.34 = 6,987.81 : x
  2. Step 2: Convert to fraction form
    12,293/16,964.34 = 6,987.81/x
  3. Step 3: Cross multiply
    12,293x = 16,964.34 × 6,987.81
  4. Step 4: Simplify right side
    12,293x = 118,543,584.70
  5. Step 5: Solve for x
    x = 118,543,584.70/12,293
  6. Step 6: Final answer
    x = 9,643.18

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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.