Home / 13,139.13-19,701.40-4,369.26

Finding the Fourth Proportional to 13,139.13, 19,701.40 and 4,369.26

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Solution

The fourth proportional to 13,139.13, 19,701.40 and 4,369.26 is: 6,551.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,139.13 : 19,701.40 = 4,369.26 : x
  2. Step 2: Convert to fraction form
    13,139.13/19,701.40 = 4,369.26/x
  3. Step 3: Cross multiply
    13,139.13x = 19,701.40 × 4,369.26
  4. Step 4: Simplify right side
    13,139.13x = 86,080,538.96
  5. Step 5: Solve for x
    x = 86,080,538.96/13,139.13
  6. Step 6: Final answer
    x = 6,551.46

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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.