Home / 13,806.91-19,055.55-7,837.35

Finding the Fourth Proportional to 13,806.91, 19,055.55 and 7,837.35

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Solution

The fourth proportional to 13,806.91, 19,055.55 and 7,837.35 is: 10,816.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,806.91 : 19,055.55 = 7,837.35 : x
  2. Step 2: Convert to fraction form
    13,806.91/19,055.55 = 7,837.35/x
  3. Step 3: Cross multiply
    13,806.91x = 19,055.55 × 7,837.35
  4. Step 4: Simplify right side
    13,806.91x = 149,345,014.79
  5. Step 5: Solve for x
    x = 149,345,014.79/13,806.91
  6. Step 6: Final answer
    x = 10,816.69

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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.