Home / 13,184.42-19,643.49-12,557.48

Finding the Fourth Proportional to 13,184.42, 19,643.49 and 12,557.48

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Solution

The fourth proportional to 13,184.42, 19,643.49 and 12,557.48 is: 18,709.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.42 : 19,643.49 = 12,557.48 : x
  2. Step 2: Convert to fraction form
    13,184.42/19,643.49 = 12,557.48/x
  3. Step 3: Cross multiply
    13,184.42x = 19,643.49 × 12,557.48
  4. Step 4: Simplify right side
    13,184.42x = 246,672,634.59
  5. Step 5: Solve for x
    x = 246,672,634.59/13,184.42
  6. Step 6: Final answer
    x = 18,709.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.