Home / 13,090.83-19,640.12-7,548.15

Finding the Fourth Proportional to 13,090.83, 19,640.12 and 7,548.15

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Solution

The fourth proportional to 13,090.83, 19,640.12 and 7,548.15 is: 11,324.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090.83 : 19,640.12 = 7,548.15 : x
  2. Step 2: Convert to fraction form
    13,090.83/19,640.12 = 7,548.15/x
  3. Step 3: Cross multiply
    13,090.83x = 19,640.12 × 7,548.15
  4. Step 4: Simplify right side
    13,090.83x = 148,246,534.04
  5. Step 5: Solve for x
    x = 148,246,534.04/13,090.83
  6. Step 6: Final answer
    x = 11,324.46

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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.