Home / 9,867.07-13,611.49-6,680.47

Finding the Fourth Proportional to 9,867.07, 13,611.49 and 6,680.47

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Solution

The fourth proportional to 9,867.07, 13,611.49 and 6,680.47 is: 9,215.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,867.07 : 13,611.49 = 6,680.47 : x
  2. Step 2: Convert to fraction form
    9,867.07/13,611.49 = 6,680.47/x
  3. Step 3: Cross multiply
    9,867.07x = 13,611.49 × 6,680.47
  4. Step 4: Simplify right side
    9,867.07x = 90,931,150.60
  5. Step 5: Solve for x
    x = 90,931,150.60/9,867.07
  6. Step 6: Final answer
    x = 9,215.62

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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.