Home / 13,090.20-19,626.66-5,291.16

Finding the Fourth Proportional to 13,090.20, 19,626.66 and 5,291.16

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Solution

The fourth proportional to 13,090.20, 19,626.66 and 5,291.16 is: 7,933.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090.20 : 19,626.66 = 5,291.16 : x
  2. Step 2: Convert to fraction form
    13,090.20/19,626.66 = 5,291.16/x
  3. Step 3: Cross multiply
    13,090.20x = 19,626.66 × 5,291.16
  4. Step 4: Simplify right side
    13,090.20x = 103,847,798.33
  5. Step 5: Solve for x
    x = 103,847,798.33/13,090.20
  6. Step 6: Final answer
    x = 7,933.25

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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.