Home / 8,730.60-13,091.37-4,286.31

Finding the Fourth Proportional to 8,730.60, 13,091.37 and 4,286.31

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Solution

The fourth proportional to 8,730.60, 13,091.37 and 4,286.31 is: 6,427.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,730.60 : 13,091.37 = 4,286.31 : x
  2. Step 2: Convert to fraction form
    8,730.60/13,091.37 = 4,286.31/x
  3. Step 3: Cross multiply
    8,730.60x = 13,091.37 × 4,286.31
  4. Step 4: Simplify right side
    8,730.60x = 56,113,670.14
  5. Step 5: Solve for x
    x = 56,113,670.14/8,730.60
  6. Step 6: Final answer
    x = 6,427.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.