Home / 8,487.05-12,729.97-2,643.51

Finding the Fourth Proportional to 8,487.05, 12,729.97 and 2,643.51

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Solution

The fourth proportional to 8,487.05, 12,729.97 and 2,643.51 is: 3,965.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.05 : 12,729.97 = 2,643.51 : x
  2. Step 2: Convert to fraction form
    8,487.05/12,729.97 = 2,643.51/x
  3. Step 3: Cross multiply
    8,487.05x = 12,729.97 × 2,643.51
  4. Step 4: Simplify right side
    8,487.05x = 33,651,802.99
  5. Step 5: Solve for x
    x = 33,651,802.99/8,487.05
  6. Step 6: Final answer
    x = 3,965.08

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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.