Home / 13,611.77-20,384.84-13,513.35

Finding the Fourth Proportional to 13,611.77, 20,384.84 and 13,513.35

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Solution

The fourth proportional to 13,611.77, 20,384.84 and 13,513.35 is: 20,237.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.77 : 20,384.84 = 13,513.35 : x
  2. Step 2: Convert to fraction form
    13,611.77/20,384.84 = 13,513.35/x
  3. Step 3: Cross multiply
    13,611.77x = 20,384.84 × 13,513.35
  4. Step 4: Simplify right side
    13,611.77x = 275,467,477.61
  5. Step 5: Solve for x
    x = 275,467,477.61/13,611.77
  6. Step 6: Final answer
    x = 20,237.45

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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.