Home / 13,852.90-19,116.03-8,187.40

Finding the Fourth Proportional to 13,852.90, 19,116.03 and 8,187.40

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Solution

The fourth proportional to 13,852.90, 19,116.03 and 8,187.40 is: 11,298.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,852.90 : 19,116.03 = 8,187.40 : x
  2. Step 2: Convert to fraction form
    13,852.90/19,116.03 = 8,187.40/x
  3. Step 3: Cross multiply
    13,852.90x = 19,116.03 × 8,187.40
  4. Step 4: Simplify right side
    13,852.90x = 156,510,584.02
  5. Step 5: Solve for x
    x = 156,510,584.02/13,852.90
  6. Step 6: Final answer
    x = 11,298.04

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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.