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Finding the Fourth Proportional to 7,006.84, 10,509.42 and 1,812.52

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Solution

The fourth proportional to 7,006.84, 10,509.42 and 1,812.52 is: 2,718.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,006.84 : 10,509.42 = 1,812.52 : x
  2. Step 2: Convert to fraction form
    7,006.84/10,509.42 = 1,812.52/x
  3. Step 3: Cross multiply
    7,006.84x = 10,509.42 × 1,812.52
  4. Step 4: Simplify right side
    7,006.84x = 19,048,533.94
  5. Step 5: Solve for x
    x = 19,048,533.94/7,006.84
  6. Step 6: Final answer
    x = 2,718.56

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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.