Home / 19,151.84-28,678.52-11,733.80

Finding the Fourth Proportional to 19,151.84, 28,678.52 and 11,733.80

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Solution

The fourth proportional to 19,151.84, 28,678.52 and 11,733.80 is: 17,570.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,151.84 : 28,678.52 = 11,733.80 : x
  2. Step 2: Convert to fraction form
    19,151.84/28,678.52 = 11,733.80/x
  3. Step 3: Cross multiply
    19,151.84x = 28,678.52 × 11,733.80
  4. Step 4: Simplify right side
    19,151.84x = 336,507,903.92
  5. Step 5: Solve for x
    x = 336,507,903.92/19,151.84
  6. Step 6: Final answer
    x = 17,570.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.