Home / 13,184.31-19,779.20-5,393.13

Finding the Fourth Proportional to 13,184.31, 19,779.20 and 5,393.13

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Solution

The fourth proportional to 13,184.31, 19,779.20 and 5,393.13 is: 8,090.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.31 : 19,779.20 = 5,393.13 : x
  2. Step 2: Convert to fraction form
    13,184.31/19,779.20 = 5,393.13/x
  3. Step 3: Cross multiply
    13,184.31x = 19,779.20 × 5,393.13
  4. Step 4: Simplify right side
    13,184.31x = 106,671,796.90
  5. Step 5: Solve for x
    x = 106,671,796.90/13,184.31
  6. Step 6: Final answer
    x = 8,090.81

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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.