Home / 12,912.01-19,356.17-5,019.77

Finding the Fourth Proportional to 12,912.01, 19,356.17 and 5,019.77

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Solution

The fourth proportional to 12,912.01, 19,356.17 and 5,019.77 is: 7,525.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912.01 : 19,356.17 = 5,019.77 : x
  2. Step 2: Convert to fraction form
    12,912.01/19,356.17 = 5,019.77/x
  3. Step 3: Cross multiply
    12,912.01x = 19,356.17 × 5,019.77
  4. Step 4: Simplify right side
    12,912.01x = 97,163,544.77
  5. Step 5: Solve for x
    x = 97,163,544.77/12,912.01
  6. Step 6: Final answer
    x = 7,525.05

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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.