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Finding the Fourth Proportional to 7,124.87, 9,829.23 and 4,767.77

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Solution

The fourth proportional to 7,124.87, 9,829.23 and 4,767.77 is: 6,577.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.87 : 9,829.23 = 4,767.77 : x
  2. Step 2: Convert to fraction form
    7,124.87/9,829.23 = 4,767.77/x
  3. Step 3: Cross multiply
    7,124.87x = 9,829.23 × 4,767.77
  4. Step 4: Simplify right side
    7,124.87x = 46,863,507.92
  5. Step 5: Solve for x
    x = 46,863,507.92/7,124.87
  6. Step 6: Final answer
    x = 6,577.45

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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.