Home / 13,090.51-19,639.41-7,251.22

Finding the Fourth Proportional to 13,090.51, 19,639.41 and 7,251.22

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Solution

The fourth proportional to 13,090.51, 19,639.41 and 7,251.22 is: 10,878.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090.51 : 19,639.41 = 7,251.22 : x
  2. Step 2: Convert to fraction form
    13,090.51/19,639.41 = 7,251.22/x
  3. Step 3: Cross multiply
    13,090.51x = 19,639.41 × 7,251.22
  4. Step 4: Simplify right side
    13,090.51x = 142,409,633.48
  5. Step 5: Solve for x
    x = 142,409,633.48/13,090.51
  6. Step 6: Final answer
    x = 10,878.85

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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.