Home / 9,559.60-13,196.72-6,378.20

Finding the Fourth Proportional to 9,559.60, 13,196.72 and 6,378.20

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Solution

The fourth proportional to 9,559.60, 13,196.72 and 6,378.20 is: 8,804.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,559.60 : 13,196.72 = 6,378.20 : x
  2. Step 2: Convert to fraction form
    9,559.60/13,196.72 = 6,378.20/x
  3. Step 3: Cross multiply
    9,559.60x = 13,196.72 × 6,378.20
  4. Step 4: Simplify right side
    9,559.60x = 84,171,319.50
  5. Step 5: Solve for x
    x = 84,171,319.50/9,559.60
  6. Step 6: Final answer
    x = 8,804.90

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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.