Home / 13,805.91-19,054.17-7,836.35

Finding the Fourth Proportional to 13,805.91, 19,054.17 and 7,836.35

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Solution

The fourth proportional to 13,805.91, 19,054.17 and 7,836.35 is: 10,815.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,805.91 : 19,054.17 = 7,836.35 : x
  2. Step 2: Convert to fraction form
    13,805.91/19,054.17 = 7,836.35/x
  3. Step 3: Cross multiply
    13,805.91x = 19,054.17 × 7,836.35
  4. Step 4: Simplify right side
    13,805.91x = 149,315,049.81
  5. Step 5: Solve for x
    x = 149,315,049.81/13,805.91
  6. Step 6: Final answer
    x = 10,815.30

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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.