Home / 13,859.94-19,119.86-9,827.63

Finding the Fourth Proportional to 13,859.94, 19,119.86 and 9,827.63

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Solution

The fourth proportional to 13,859.94, 19,119.86 and 9,827.63 is: 13,557.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.94 : 19,119.86 = 9,827.63 : x
  2. Step 2: Convert to fraction form
    13,859.94/19,119.86 = 9,827.63/x
  3. Step 3: Cross multiply
    13,859.94x = 19,119.86 × 9,827.63
  4. Step 4: Simplify right side
    13,859.94x = 187,902,814.13
  5. Step 5: Solve for x
    x = 187,902,814.13/13,859.94
  6. Step 6: Final answer
    x = 13,557.26

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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.