Home / 13,818.31-19,069.10-8,153.07

Finding the Fourth Proportional to 13,818.31, 19,069.10 and 8,153.07

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Solution

The fourth proportional to 13,818.31, 19,069.10 and 8,153.07 is: 11,251.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.31 : 19,069.10 = 8,153.07 : x
  2. Step 2: Convert to fraction form
    13,818.31/19,069.10 = 8,153.07/x
  3. Step 3: Cross multiply
    13,818.31x = 19,069.10 × 8,153.07
  4. Step 4: Simplify right side
    13,818.31x = 155,471,611.79
  5. Step 5: Solve for x
    x = 155,471,611.79/13,818.31
  6. Step 6: Final answer
    x = 11,251.13

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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.