Home / 13,823.45-19,079.31-8,156.08

Finding the Fourth Proportional to 13,823.45, 19,079.31 and 8,156.08

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Solution

The fourth proportional to 13,823.45, 19,079.31 and 8,156.08 is: 11,257.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.45 : 19,079.31 = 8,156.08 : x
  2. Step 2: Convert to fraction form
    13,823.45/19,079.31 = 8,156.08/x
  3. Step 3: Cross multiply
    13,823.45x = 19,079.31 × 8,156.08
  4. Step 4: Simplify right side
    13,823.45x = 155,612,378.70
  5. Step 5: Solve for x
    x = 155,612,378.70/13,823.45
  6. Step 6: Final answer
    x = 11,257.13

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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.