Home / 13,871.39-19,141.52-8,566.29

Finding the Fourth Proportional to 13,871.39, 19,141.52 and 8,566.29

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Solution

The fourth proportional to 13,871.39, 19,141.52 and 8,566.29 is: 11,820.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871.39 : 19,141.52 = 8,566.29 : x
  2. Step 2: Convert to fraction form
    13,871.39/19,141.52 = 8,566.29/x
  3. Step 3: Cross multiply
    13,871.39x = 19,141.52 × 8,566.29
  4. Step 4: Simplify right side
    13,871.39x = 163,971,768.53
  5. Step 5: Solve for x
    x = 163,971,768.53/13,871.39
  6. Step 6: Final answer
    x = 11,820.86

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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.