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Finding the Fourth Proportional to 7,124.37, 9,819.59 and 5,000.55

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Solution

The fourth proportional to 7,124.37, 9,819.59 and 5,000.55 is: 6,892.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.37 : 9,819.59 = 5,000.55 : x
  2. Step 2: Convert to fraction form
    7,124.37/9,819.59 = 5,000.55/x
  3. Step 3: Cross multiply
    7,124.37x = 9,819.59 × 5,000.55
  4. Step 4: Simplify right side
    7,124.37x = 49,103,325.77
  5. Step 5: Solve for x
    x = 49,103,325.77/7,124.37
  6. Step 6: Final answer
    x = 6,892.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.