Home / 13,623.42-20,424.27-12,529.98

Finding the Fourth Proportional to 13,623.42, 20,424.27 and 12,529.98

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Solution

The fourth proportional to 13,623.42, 20,424.27 and 12,529.98 is: 18,784.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.42 : 20,424.27 = 12,529.98 : x
  2. Step 2: Convert to fraction form
    13,623.42/20,424.27 = 12,529.98/x
  3. Step 3: Cross multiply
    13,623.42x = 20,424.27 × 12,529.98
  4. Step 4: Simplify right side
    13,623.42x = 255,915,694.61
  5. Step 5: Solve for x
    x = 255,915,694.61/13,623.42
  6. Step 6: Final answer
    x = 18,784.98

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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.