Home / 7,721.61-11,597.94-4,607.70

Finding the Fourth Proportional to 7,721.61, 11,597.94 and 4,607.70

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Solution

The fourth proportional to 7,721.61, 11,597.94 and 4,607.70 is: 6,920.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.61 : 11,597.94 = 4,607.70 : x
  2. Step 2: Convert to fraction form
    7,721.61/11,597.94 = 4,607.70/x
  3. Step 3: Cross multiply
    7,721.61x = 11,597.94 × 4,607.70
  4. Step 4: Simplify right side
    7,721.61x = 53,439,828.14
  5. Step 5: Solve for x
    x = 53,439,828.14/7,721.61
  6. Step 6: Final answer
    x = 6,920.81

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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.