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Finding the Fourth Proportional to 7,605.51, 11,399.90 and 4,971.93

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Solution

The fourth proportional to 7,605.51, 11,399.90 and 4,971.93 is: 7,452.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,605.51 : 11,399.90 = 4,971.93 : x
  2. Step 2: Convert to fraction form
    7,605.51/11,399.90 = 4,971.93/x
  3. Step 3: Cross multiply
    7,605.51x = 11,399.90 × 4,971.93
  4. Step 4: Simplify right side
    7,605.51x = 56,679,479.95
  5. Step 5: Solve for x
    x = 56,679,479.95/7,605.51
  6. Step 6: Final answer
    x = 7,452.42

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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.