Home / 9,432.36-13,019.64-6,447.09

Finding the Fourth Proportional to 9,432.36, 13,019.64 and 6,447.09

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Solution

The fourth proportional to 9,432.36, 13,019.64 and 6,447.09 is: 8,899.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,432.36 : 13,019.64 = 6,447.09 : x
  2. Step 2: Convert to fraction form
    9,432.36/13,019.64 = 6,447.09/x
  3. Step 3: Cross multiply
    9,432.36x = 13,019.64 × 6,447.09
  4. Step 4: Simplify right side
    9,432.36x = 83,938,790.85
  5. Step 5: Solve for x
    x = 83,938,790.85/9,432.36
  6. Step 6: Final answer
    x = 8,899.02

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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.