Home / 12,759.36-19,139.40-3,525.36

Finding the Fourth Proportional to 12,759.36, 19,139.40 and 3,525.36

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Solution

The fourth proportional to 12,759.36, 19,139.40 and 3,525.36 is: 5,288.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,759.36 : 19,139.40 = 3,525.36 : x
  2. Step 2: Convert to fraction form
    12,759.36/19,139.40 = 3,525.36/x
  3. Step 3: Cross multiply
    12,759.36x = 19,139.40 × 3,525.36
  4. Step 4: Simplify right side
    12,759.36x = 67,473,275.18
  5. Step 5: Solve for x
    x = 67,473,275.18/12,759.36
  6. Step 6: Final answer
    x = 5,288.14

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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.