Home / 10,129.36-15,194.48-3,108.84

Finding the Fourth Proportional to 10,129.36, 15,194.48 and 3,108.84

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Solution

The fourth proportional to 10,129.36, 15,194.48 and 3,108.84 is: 4,663.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.36 : 15,194.48 = 3,108.84 : x
  2. Step 2: Convert to fraction form
    10,129.36/15,194.48 = 3,108.84/x
  3. Step 3: Cross multiply
    10,129.36x = 15,194.48 × 3,108.84
  4. Step 4: Simplify right side
    10,129.36x = 47,237,207.20
  5. Step 5: Solve for x
    x = 47,237,207.20/10,129.36
  6. Step 6: Final answer
    x = 4,663.40

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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.