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Finding the Fourth Proportional to 6,647.99, 9,973.68 and 1,967.81

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Solution

The fourth proportional to 6,647.99, 9,973.68 and 1,967.81 is: 2,952.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647.99 : 9,973.68 = 1,967.81 : x
  2. Step 2: Convert to fraction form
    6,647.99/9,973.68 = 1,967.81/x
  3. Step 3: Cross multiply
    6,647.99x = 9,973.68 × 1,967.81
  4. Step 4: Simplify right side
    6,647.99x = 19,626,307.24
  5. Step 5: Solve for x
    x = 19,626,307.24/6,647.99
  6. Step 6: Final answer
    x = 2,952.22

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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.