Home / 8,672.21-11,967.59-6,785.72

Finding the Fourth Proportional to 8,672.21, 11,967.59 and 6,785.72

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Solution

The fourth proportional to 8,672.21, 11,967.59 and 6,785.72 is: 9,364.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.21 : 11,967.59 = 6,785.72 : x
  2. Step 2: Convert to fraction form
    8,672.21/11,967.59 = 6,785.72/x
  3. Step 3: Cross multiply
    8,672.21x = 11,967.59 × 6,785.72
  4. Step 4: Simplify right side
    8,672.21x = 81,208,680.89
  5. Step 5: Solve for x
    x = 81,208,680.89/8,672.21
  6. Step 6: Final answer
    x = 9,364.24

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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.