Home / 7,964.76-11,946.87-2,421.93

Finding the Fourth Proportional to 7,964.76, 11,946.87 and 2,421.93

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Solution

The fourth proportional to 7,964.76, 11,946.87 and 2,421.93 is: 3,632.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,964.76 : 11,946.87 = 2,421.93 : x
  2. Step 2: Convert to fraction form
    7,964.76/11,946.87 = 2,421.93/x
  3. Step 3: Cross multiply
    7,964.76x = 11,946.87 × 2,421.93
  4. Step 4: Simplify right side
    7,964.76x = 28,934,482.86
  5. Step 5: Solve for x
    x = 28,934,482.86/7,964.76
  6. Step 6: Final answer
    x = 3,632.81

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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.