Home / 13,490.19-20,235.42-4,130.19

Finding the Fourth Proportional to 13,490.19, 20,235.42 and 4,130.19

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Solution

The fourth proportional to 13,490.19, 20,235.42 and 4,130.19 is: 6,195.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.19 : 20,235.42 = 4,130.19 : x
  2. Step 2: Convert to fraction form
    13,490.19/20,235.42 = 4,130.19/x
  3. Step 3: Cross multiply
    13,490.19x = 20,235.42 × 4,130.19
  4. Step 4: Simplify right side
    13,490.19x = 83,576,129.33
  5. Step 5: Solve for x
    x = 83,576,129.33/13,490.19
  6. Step 6: Final answer
    x = 6,195.33

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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.