Home / 13,410.84-18,506.52-8,104.74

Finding the Fourth Proportional to 13,410.84, 18,506.52 and 8,104.74

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Solution

The fourth proportional to 13,410.84, 18,506.52 and 8,104.74 is: 11,184.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.84 : 18,506.52 = 8,104.74 : x
  2. Step 2: Convert to fraction form
    13,410.84/18,506.52 = 8,104.74/x
  3. Step 3: Cross multiply
    13,410.84x = 18,506.52 × 8,104.74
  4. Step 4: Simplify right side
    13,410.84x = 149,990,532.90
  5. Step 5: Solve for x
    x = 149,990,532.90/13,410.84
  6. Step 6: Final answer
    x = 11,184.28

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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.