Home / 19,007.68-28,512.69-7,320.91

Finding the Fourth Proportional to 19,007.68, 28,512.69 and 7,320.91

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Solution

The fourth proportional to 19,007.68, 28,512.69 and 7,320.91 is: 10,981.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,007.68 : 28,512.69 = 7,320.91 : x
  2. Step 2: Convert to fraction form
    19,007.68/28,512.69 = 7,320.91/x
  3. Step 3: Cross multiply
    19,007.68x = 28,512.69 × 7,320.91
  4. Step 4: Simplify right side
    19,007.68x = 208,738,837.35
  5. Step 5: Solve for x
    x = 208,738,837.35/19,007.68
  6. Step 6: Final answer
    x = 10,981.82

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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.