Home / 19,670.90-27,145.74-10,718.37

Finding the Fourth Proportional to 19,670.90, 27,145.74 and 10,718.37

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Solution

The fourth proportional to 19,670.90, 27,145.74 and 10,718.37 is: 14,791.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,670.90 : 27,145.74 = 10,718.37 : x
  2. Step 2: Convert to fraction form
    19,670.90/27,145.74 = 10,718.37/x
  3. Step 3: Cross multiply
    19,670.90x = 27,145.74 × 10,718.37
  4. Step 4: Simplify right side
    19,670.90x = 290,958,085.24
  5. Step 5: Solve for x
    x = 290,958,085.24/19,670.90
  6. Step 6: Final answer
    x = 14,791.30

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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.