Home / 13,867.05-19,136.55-7,579.43

Finding the Fourth Proportional to 13,867.05, 19,136.55 and 7,579.43

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Solution

The fourth proportional to 13,867.05, 19,136.55 and 7,579.43 is: 10,459.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.05 : 19,136.55 = 7,579.43 : x
  2. Step 2: Convert to fraction form
    13,867.05/19,136.55 = 7,579.43/x
  3. Step 3: Cross multiply
    13,867.05x = 19,136.55 × 7,579.43
  4. Step 4: Simplify right side
    13,867.05x = 145,044,141.17
  5. Step 5: Solve for x
    x = 145,044,141.17/13,867.05
  6. Step 6: Final answer
    x = 10,459.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.