Home / 19,185.04-26,476.48-12,800.64

Finding the Fourth Proportional to 19,185.04, 26,476.48 and 12,800.64

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Solution

The fourth proportional to 19,185.04, 26,476.48 and 12,800.64 is: 17,665.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,185.04 : 26,476.48 = 12,800.64 : x
  2. Step 2: Convert to fraction form
    19,185.04/26,476.48 = 12,800.64/x
  3. Step 3: Cross multiply
    19,185.04x = 26,476.48 × 12,800.64
  4. Step 4: Simplify right side
    19,185.04x = 338,915,888.95
  5. Step 5: Solve for x
    x = 338,915,888.95/19,185.04
  6. Step 6: Final answer
    x = 17,665.63

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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.