Home / 7,421.90-11,127.91-4,453.66

Finding the Fourth Proportional to 7,421.90, 11,127.91 and 4,453.66

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Solution

The fourth proportional to 7,421.90, 11,127.91 and 4,453.66 is: 6,677.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.90 : 11,127.91 = 4,453.66 : x
  2. Step 2: Convert to fraction form
    7,421.90/11,127.91 = 4,453.66/x
  3. Step 3: Cross multiply
    7,421.90x = 11,127.91 × 4,453.66
  4. Step 4: Simplify right side
    7,421.90x = 49,559,927.65
  5. Step 5: Solve for x
    x = 49,559,927.65/7,421.90
  6. Step 6: Final answer
    x = 6,677.53

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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.