Home / 11,203.86-15,459.40-6,730.08

Finding the Fourth Proportional to 11,203.86, 15,459.40 and 6,730.08

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Solution

The fourth proportional to 11,203.86, 15,459.40 and 6,730.08 is: 9,286.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,203.86 : 15,459.40 = 6,730.08 : x
  2. Step 2: Convert to fraction form
    11,203.86/15,459.40 = 6,730.08/x
  3. Step 3: Cross multiply
    11,203.86x = 15,459.40 × 6,730.08
  4. Step 4: Simplify right side
    11,203.86x = 104,042,998.75
  5. Step 5: Solve for x
    x = 104,042,998.75/11,203.86
  6. Step 6: Final answer
    x = 9,286.35

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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.