Home / 10,125.06-15,187.58-3,105.09

Finding the Fourth Proportional to 10,125.06, 15,187.58 and 3,105.09

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Solution

The fourth proportional to 10,125.06, 15,187.58 and 3,105.09 is: 4,657.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125.06 : 15,187.58 = 3,105.09 : x
  2. Step 2: Convert to fraction form
    10,125.06/15,187.58 = 3,105.09/x
  3. Step 3: Cross multiply
    10,125.06x = 15,187.58 × 3,105.09
  4. Step 4: Simplify right side
    10,125.06x = 47,158,802.78
  5. Step 5: Solve for x
    x = 47,158,802.78/10,125.06
  6. Step 6: Final answer
    x = 4,657.63

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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.