Home / 11,181.04-15,430.58-6,402.49

Finding the Fourth Proportional to 11,181.04, 15,430.58 and 6,402.49

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Solution

The fourth proportional to 11,181.04, 15,430.58 and 6,402.49 is: 8,835.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.04 : 15,430.58 = 6,402.49 : x
  2. Step 2: Convert to fraction form
    11,181.04/15,430.58 = 6,402.49/x
  3. Step 3: Cross multiply
    11,181.04x = 15,430.58 × 6,402.49
  4. Step 4: Simplify right side
    11,181.04x = 98,794,134.14
  5. Step 5: Solve for x
    x = 98,794,134.14/11,181.04
  6. Step 6: Final answer
    x = 8,835.86

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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.