Home / 13,911-19,197.20-7,623.24

Finding the Fourth Proportional to 13,911, 19,197.20 and 7,623.24

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Solution

The fourth proportional to 13,911, 19,197.20 and 7,623.24 is: 10,520.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911 : 19,197.20 = 7,623.24 : x
  2. Step 2: Convert to fraction form
    13,911/19,197.20 = 7,623.24/x
  3. Step 3: Cross multiply
    13,911x = 19,197.20 × 7,623.24
  4. Step 4: Simplify right side
    13,911x = 146,344,862.93
  5. Step 5: Solve for x
    x = 146,344,862.93/13,911
  6. Step 6: Final answer
    x = 10,520.08

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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.