Home / 13,867.20-19,136.67-7,579.56

Finding the Fourth Proportional to 13,867.20, 19,136.67 and 7,579.56

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Solution

The fourth proportional to 13,867.20, 19,136.67 and 7,579.56 is: 10,459.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.20 : 19,136.67 = 7,579.56 : x
  2. Step 2: Convert to fraction form
    13,867.20/19,136.67 = 7,579.56/x
  3. Step 3: Cross multiply
    13,867.20x = 19,136.67 × 7,579.56
  4. Step 4: Simplify right side
    13,867.20x = 145,047,538.47
  5. Step 5: Solve for x
    x = 145,047,538.47/13,867.20
  6. Step 6: Final answer
    x = 10,459.76

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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.