Home / 7,721.20-10,662.81-6,595.58

Finding the Fourth Proportional to 7,721.20, 10,662.81 and 6,595.58

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Solution

The fourth proportional to 7,721.20, 10,662.81 and 6,595.58 is: 9,108.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.20 : 10,662.81 = 6,595.58 : x
  2. Step 2: Convert to fraction form
    7,721.20/10,662.81 = 6,595.58/x
  3. Step 3: Cross multiply
    7,721.20x = 10,662.81 × 6,595.58
  4. Step 4: Simplify right side
    7,721.20x = 70,327,413.98
  5. Step 5: Solve for x
    x = 70,327,413.98/7,721.20
  6. Step 6: Final answer
    x = 9,108.35

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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.