Home / 19,647.51-27,114.80-11,690.07

Finding the Fourth Proportional to 19,647.51, 27,114.80 and 11,690.07

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Solution

The fourth proportional to 19,647.51, 27,114.80 and 11,690.07 is: 16,133.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,647.51 : 27,114.80 = 11,690.07 : x
  2. Step 2: Convert to fraction form
    19,647.51/27,114.80 = 11,690.07/x
  3. Step 3: Cross multiply
    19,647.51x = 27,114.80 × 11,690.07
  4. Step 4: Simplify right side
    19,647.51x = 316,973,851.59
  5. Step 5: Solve for x
    x = 316,973,851.59/19,647.51
  6. Step 6: Final answer
    x = 16,133.03

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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.