Home / 9,886.83-13,643.55-5,853.86

Finding the Fourth Proportional to 9,886.83, 13,643.55 and 5,853.86

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Solution

The fourth proportional to 9,886.83, 13,643.55 and 5,853.86 is: 8,078.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,886.83 : 13,643.55 = 5,853.86 : x
  2. Step 2: Convert to fraction form
    9,886.83/13,643.55 = 5,853.86/x
  3. Step 3: Cross multiply
    9,886.83x = 13,643.55 × 5,853.86
  4. Step 4: Simplify right side
    9,886.83x = 79,867,431.60
  5. Step 5: Solve for x
    x = 79,867,431.60/9,886.83
  6. Step 6: Final answer
    x = 8,078.16

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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.