Home / 13,186.49-19,779.72-5,395.29

Finding the Fourth Proportional to 13,186.49, 19,779.72 and 5,395.29

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Solution

The fourth proportional to 13,186.49, 19,779.72 and 5,395.29 is: 8,092.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.49 : 19,779.72 = 5,395.29 : x
  2. Step 2: Convert to fraction form
    13,186.49/19,779.72 = 5,395.29/x
  3. Step 3: Cross multiply
    13,186.49x = 19,779.72 × 5,395.29
  4. Step 4: Simplify right side
    13,186.49x = 106,717,325.52
  5. Step 5: Solve for x
    x = 106,717,325.52/13,186.49
  6. Step 6: Final answer
    x = 8,092.93

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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.