Home / 19,636.96-27,084.88-13,670.64

Finding the Fourth Proportional to 19,636.96, 27,084.88 and 13,670.64

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Solution

The fourth proportional to 19,636.96, 27,084.88 and 13,670.64 is: 18,855.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,636.96 : 27,084.88 = 13,670.64 : x
  2. Step 2: Convert to fraction form
    19,636.96/27,084.88 = 13,670.64/x
  3. Step 3: Cross multiply
    19,636.96x = 27,084.88 × 13,670.64
  4. Step 4: Simplify right side
    19,636.96x = 370,267,643.92
  5. Step 5: Solve for x
    x = 370,267,643.92/19,636.96
  6. Step 6: Final answer
    x = 18,855.65

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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.