Home / 10,130.15-15,198.14-3,111.19

Finding the Fourth Proportional to 10,130.15, 15,198.14 and 3,111.19

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Solution

The fourth proportional to 10,130.15, 15,198.14 and 3,111.19 is: 4,667.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.15 : 15,198.14 = 3,111.19 : x
  2. Step 2: Convert to fraction form
    10,130.15/15,198.14 = 3,111.19/x
  3. Step 3: Cross multiply
    10,130.15x = 15,198.14 × 3,111.19
  4. Step 4: Simplify right side
    10,130.15x = 47,284,270.97
  5. Step 5: Solve for x
    x = 47,284,270.97/10,130.15
  6. Step 6: Final answer
    x = 4,667.68

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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.