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Finding the Fourth Proportional to 19,204.05, 28,806.04 and 7,509.07

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Solution

The fourth proportional to 19,204.05, 28,806.04 and 7,509.07 is: 11,263.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,204.05 : 28,806.04 = 7,509.07 : x
  2. Step 2: Convert to fraction form
    19,204.05/28,806.04 = 7,509.07/x
  3. Step 3: Cross multiply
    19,204.05x = 28,806.04 × 7,509.07
  4. Step 4: Simplify right side
    19,204.05x = 216,306,389.21
  5. Step 5: Solve for x
    x = 216,306,389.21/19,204.05
  6. Step 6: Final answer
    x = 11,263.58

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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.