Home / 13,815.68-19,081.62-10,055.70

Finding the Fourth Proportional to 13,815.68, 19,081.62 and 10,055.70

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Solution

The fourth proportional to 13,815.68, 19,081.62 and 10,055.70 is: 13,888.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815.68 : 19,081.62 = 10,055.70 : x
  2. Step 2: Convert to fraction form
    13,815.68/19,081.62 = 10,055.70/x
  3. Step 3: Cross multiply
    13,815.68x = 19,081.62 × 10,055.70
  4. Step 4: Simplify right side
    13,815.68x = 191,879,046.23
  5. Step 5: Solve for x
    x = 191,879,046.23/13,815.68
  6. Step 6: Final answer
    x = 13,888.50

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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.