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Finding the Fourth Proportional to 7,000.07, 10,500.21 and 1,805.93

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Solution

The fourth proportional to 7,000.07, 10,500.21 and 1,805.93 is: 2,708.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,000.07 : 10,500.21 = 1,805.93 : x
  2. Step 2: Convert to fraction form
    7,000.07/10,500.21 = 1,805.93/x
  3. Step 3: Cross multiply
    7,000.07x = 10,500.21 × 1,805.93
  4. Step 4: Simplify right side
    7,000.07x = 18,962,644.25
  5. Step 5: Solve for x
    x = 18,962,644.25/7,000.07
  6. Step 6: Final answer
    x = 2,708.92

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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.