Home / 9,780.41-13,497.30-5,531.64

Finding the Fourth Proportional to 9,780.41, 13,497.30 and 5,531.64

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Solution

The fourth proportional to 9,780.41, 13,497.30 and 5,531.64 is: 7,633.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.41 : 13,497.30 = 5,531.64 : x
  2. Step 2: Convert to fraction form
    9,780.41/13,497.30 = 5,531.64/x
  3. Step 3: Cross multiply
    9,780.41x = 13,497.30 × 5,531.64
  4. Step 4: Simplify right side
    9,780.41x = 74,662,204.57
  5. Step 5: Solve for x
    x = 74,662,204.57/9,780.41
  6. Step 6: Final answer
    x = 7,633.86

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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.