Home / 9,139.36-13,705.95-4,206.31

Finding the Fourth Proportional to 9,139.36, 13,705.95 and 4,206.31

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Solution

The fourth proportional to 9,139.36, 13,705.95 and 4,206.31 is: 6,308.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139.36 : 13,705.95 = 4,206.31 : x
  2. Step 2: Convert to fraction form
    9,139.36/13,705.95 = 4,206.31/x
  3. Step 3: Cross multiply
    9,139.36x = 13,705.95 × 4,206.31
  4. Step 4: Simplify right side
    9,139.36x = 57,651,474.54
  5. Step 5: Solve for x
    x = 57,651,474.54/9,139.36
  6. Step 6: Final answer
    x = 6,308.04

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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.