Home / 9,824.26-13,560.36-6,421.78

Finding the Fourth Proportional to 9,824.26, 13,560.36 and 6,421.78

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Solution

The fourth proportional to 9,824.26, 13,560.36 and 6,421.78 is: 8,863.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,824.26 : 13,560.36 = 6,421.78 : x
  2. Step 2: Convert to fraction form
    9,824.26/13,560.36 = 6,421.78/x
  3. Step 3: Cross multiply
    9,824.26x = 13,560.36 × 6,421.78
  4. Step 4: Simplify right side
    9,824.26x = 87,081,677.63
  5. Step 5: Solve for x
    x = 87,081,677.63/9,824.26
  6. Step 6: Final answer
    x = 8,863.94

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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.