Home / 13,335.40-19,986.36-6,763.24

Finding the Fourth Proportional to 13,335.40, 19,986.36 and 6,763.24

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Solution

The fourth proportional to 13,335.40, 19,986.36 and 6,763.24 is: 10,136.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.40 : 19,986.36 = 6,763.24 : x
  2. Step 2: Convert to fraction form
    13,335.40/19,986.36 = 6,763.24/x
  3. Step 3: Cross multiply
    13,335.40x = 19,986.36 × 6,763.24
  4. Step 4: Simplify right side
    13,335.40x = 135,172,549.41
  5. Step 5: Solve for x
    x = 135,172,549.41/13,335.40
  6. Step 6: Final answer
    x = 10,136.37

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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.