Home / 13,136.05-19,686.97-5,335.75

Finding the Fourth Proportional to 13,136.05, 19,686.97 and 5,335.75

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Solution

The fourth proportional to 13,136.05, 19,686.97 and 5,335.75 is: 7,996.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,136.05 : 19,686.97 = 5,335.75 : x
  2. Step 2: Convert to fraction form
    13,136.05/19,686.97 = 5,335.75/x
  3. Step 3: Cross multiply
    13,136.05x = 19,686.97 × 5,335.75
  4. Step 4: Simplify right side
    13,136.05x = 105,044,750.18
  5. Step 5: Solve for x
    x = 105,044,750.18/13,136.05
  6. Step 6: Final answer
    x = 7,996.68

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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.