Home / 9,964.16-14,942.80-4,421.40

Finding the Fourth Proportional to 9,964.16, 14,942.80 and 4,421.40

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Solution

The fourth proportional to 9,964.16, 14,942.80 and 4,421.40 is: 6,630.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,964.16 : 14,942.80 = 4,421.40 : x
  2. Step 2: Convert to fraction form
    9,964.16/14,942.80 = 4,421.40/x
  3. Step 3: Cross multiply
    9,964.16x = 14,942.80 × 4,421.40
  4. Step 4: Simplify right side
    9,964.16x = 66,068,095.92
  5. Step 5: Solve for x
    x = 66,068,095.92/9,964.16
  6. Step 6: Final answer
    x = 6,630.57

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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.