Home / 19,130.85-26,399.21-11,963.99

Finding the Fourth Proportional to 19,130.85, 26,399.21 and 11,963.99

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Solution

The fourth proportional to 19,130.85, 26,399.21 and 11,963.99 is: 16,509.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,130.85 : 26,399.21 = 11,963.99 : x
  2. Step 2: Convert to fraction form
    19,130.85/26,399.21 = 11,963.99/x
  3. Step 3: Cross multiply
    19,130.85x = 26,399.21 × 11,963.99
  4. Step 4: Simplify right side
    19,130.85x = 315,839,692.63
  5. Step 5: Solve for x
    x = 315,839,692.63/19,130.85
  6. Step 6: Final answer
    x = 16,509.44

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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.