Home / 19,670.85-27,145.53-10,718.12

Finding the Fourth Proportional to 19,670.85, 27,145.53 and 10,718.12

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Solution

The fourth proportional to 19,670.85, 27,145.53 and 10,718.12 is: 14,790.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,670.85 : 27,145.53 = 10,718.12 : x
  2. Step 2: Convert to fraction form
    19,670.85/27,145.53 = 10,718.12/x
  3. Step 3: Cross multiply
    19,670.85x = 27,145.53 × 10,718.12
  4. Step 4: Simplify right side
    19,670.85x = 290,949,115.87
  5. Step 5: Solve for x
    x = 290,949,115.87/19,670.85
  6. Step 6: Final answer
    x = 14,790.88

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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.