Home / 13,867.09-19,136.57-7,579.46

Finding the Fourth Proportional to 13,867.09, 19,136.57 and 7,579.46

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Solution

The fourth proportional to 13,867.09, 19,136.57 and 7,579.46 is: 10,459.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.09 : 19,136.57 = 7,579.46 : x
  2. Step 2: Convert to fraction form
    13,867.09/19,136.57 = 7,579.46/x
  3. Step 3: Cross multiply
    13,867.09x = 19,136.57 × 7,579.46
  4. Step 4: Simplify right side
    13,867.09x = 145,044,866.85
  5. Step 5: Solve for x
    x = 145,044,866.85/13,867.09
  6. Step 6: Final answer
    x = 10,459.65

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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.