Home / 13,867.16-19,136.72-7,579.67

Finding the Fourth Proportional to 13,867.16, 19,136.72 and 7,579.67

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Solution

The fourth proportional to 13,867.16, 19,136.72 and 7,579.67 is: 10,459.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.16 : 19,136.72 = 7,579.67 : x
  2. Step 2: Convert to fraction form
    13,867.16/19,136.72 = 7,579.67/x
  3. Step 3: Cross multiply
    13,867.16x = 19,136.72 × 7,579.67
  4. Step 4: Simplify right side
    13,867.16x = 145,049,945.75
  5. Step 5: Solve for x
    x = 145,049,945.75/13,867.16
  6. Step 6: Final answer
    x = 10,459.96

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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.