Home / 13,840.68-19,107.84-9,133.08

Finding the Fourth Proportional to 13,840.68, 19,107.84 and 9,133.08

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Solution

The fourth proportional to 13,840.68, 19,107.84 and 9,133.08 is: 12,608.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.68 : 19,107.84 = 9,133.08 : x
  2. Step 2: Convert to fraction form
    13,840.68/19,107.84 = 9,133.08/x
  3. Step 3: Cross multiply
    13,840.68x = 19,107.84 × 9,133.08
  4. Step 4: Simplify right side
    13,840.68x = 174,513,431.35
  5. Step 5: Solve for x
    x = 174,513,431.35/13,840.68
  6. Step 6: Final answer
    x = 12,608.73

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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.