Home / 10,129.36-15,188.48-3,554.94

Finding the Fourth Proportional to 10,129.36, 15,188.48 and 3,554.94

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Solution

The fourth proportional to 10,129.36, 15,188.48 and 3,554.94 is: 5,330.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.36 : 15,188.48 = 3,554.94 : x
  2. Step 2: Convert to fraction form
    10,129.36/15,188.48 = 3,554.94/x
  3. Step 3: Cross multiply
    10,129.36x = 15,188.48 × 3,554.94
  4. Step 4: Simplify right side
    10,129.36x = 53,994,135.09
  5. Step 5: Solve for x
    x = 53,994,135.09/10,129.36
  6. Step 6: Final answer
    x = 5,330.46

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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.