Home / 10,130.19-15,195.75-3,109.92

Finding the Fourth Proportional to 10,130.19, 15,195.75 and 3,109.92

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Solution

The fourth proportional to 10,130.19, 15,195.75 and 3,109.92 is: 4,665.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.19 : 15,195.75 = 3,109.92 : x
  2. Step 2: Convert to fraction form
    10,130.19/15,195.75 = 3,109.92/x
  3. Step 3: Cross multiply
    10,130.19x = 15,195.75 × 3,109.92
  4. Step 4: Simplify right side
    10,130.19x = 47,257,490.86
  5. Step 5: Solve for x
    x = 47,257,490.86/10,130.19
  6. Step 6: Final answer
    x = 4,665.02

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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.