Home / 13,823.12-19,070.17-8,155.62

Finding the Fourth Proportional to 13,823.12, 19,070.17 and 8,155.62

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Solution

The fourth proportional to 13,823.12, 19,070.17 and 8,155.62 is: 11,251.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.12 : 19,070.17 = 8,155.62 : x
  2. Step 2: Convert to fraction form
    13,823.12/19,070.17 = 8,155.62/x
  3. Step 3: Cross multiply
    13,823.12x = 19,070.17 × 8,155.62
  4. Step 4: Simplify right side
    13,823.12x = 155,529,039.47
  5. Step 5: Solve for x
    x = 155,529,039.47/13,823.12
  6. Step 6: Final answer
    x = 11,251.37

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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.