Home / 12,419.27-18,623.43-6,574.51

Finding the Fourth Proportional to 12,419.27, 18,623.43 and 6,574.51

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Solution

The fourth proportional to 12,419.27, 18,623.43 and 6,574.51 is: 9,858.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,419.27 : 18,623.43 = 6,574.51 : x
  2. Step 2: Convert to fraction form
    12,419.27/18,623.43 = 6,574.51/x
  3. Step 3: Cross multiply
    12,419.27x = 18,623.43 × 6,574.51
  4. Step 4: Simplify right side
    12,419.27x = 122,439,880.21
  5. Step 5: Solve for x
    x = 122,439,880.21/12,419.27
  6. Step 6: Final answer
    x = 9,858.87

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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.