Home / 13,078.60-19,582.98-6,909.64

Finding the Fourth Proportional to 13,078.60, 19,582.98 and 6,909.64

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Solution

The fourth proportional to 13,078.60, 19,582.98 and 6,909.64 is: 10,346.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.60 : 19,582.98 = 6,909.64 : x
  2. Step 2: Convert to fraction form
    13,078.60/19,582.98 = 6,909.64/x
  3. Step 3: Cross multiply
    13,078.60x = 19,582.98 × 6,909.64
  4. Step 4: Simplify right side
    13,078.60x = 135,311,341.93
  5. Step 5: Solve for x
    x = 135,311,341.93/13,078.60
  6. Step 6: Final answer
    x = 10,346.01

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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.