Home / 13,810.77-20,611.82-12,874.41

Finding the Fourth Proportional to 13,810.77, 20,611.82 and 12,874.41

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Solution

The fourth proportional to 13,810.77, 20,611.82 and 12,874.41 is: 19,214.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,810.77 : 20,611.82 = 12,874.41 : x
  2. Step 2: Convert to fraction form
    13,810.77/20,611.82 = 12,874.41/x
  3. Step 3: Cross multiply
    13,810.77x = 20,611.82 × 12,874.41
  4. Step 4: Simplify right side
    13,810.77x = 265,364,957.15
  5. Step 5: Solve for x
    x = 265,364,957.15/13,810.77
  6. Step 6: Final answer
    x = 19,214.35

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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.