Home / 13,805.15-19,051.34-7,837.00

Finding the Fourth Proportional to 13,805.15, 19,051.34 and 7,837.00

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Solution

The fourth proportional to 13,805.15, 19,051.34 and 7,837.00 is: 10,815.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,805.15 : 19,051.34 = 7,837.00 : x
  2. Step 2: Convert to fraction form
    13,805.15/19,051.34 = 7,837.00/x
  3. Step 3: Cross multiply
    13,805.15x = 19,051.34 × 7,837.00
  4. Step 4: Simplify right side
    13,805.15x = 149,305,217.14
  5. Step 5: Solve for x
    x = 149,305,217.14/13,805.15
  6. Step 6: Final answer
    x = 10,815.18

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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.