Home / 12,949.24-19,424.10-5,157.40

Finding the Fourth Proportional to 12,949.24, 19,424.10 and 5,157.40

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Solution

The fourth proportional to 12,949.24, 19,424.10 and 5,157.40 is: 7,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949.24 : 19,424.10 = 5,157.40 : x
  2. Step 2: Convert to fraction form
    12,949.24/19,424.10 = 5,157.40/x
  3. Step 3: Cross multiply
    12,949.24x = 19,424.10 × 5,157.40
  4. Step 4: Simplify right side
    12,949.24x = 100,177,853.34
  5. Step 5: Solve for x
    x = 100,177,853.34/12,949.24
  6. Step 6: Final answer
    x = 7,736.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.