Home / 12,864.87-19,300.95-6,629.43

Finding the Fourth Proportional to 12,864.87, 19,300.95 and 6,629.43

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Solution

The fourth proportional to 12,864.87, 19,300.95 and 6,629.43 is: 9,946.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.87 : 19,300.95 = 6,629.43 : x
  2. Step 2: Convert to fraction form
    12,864.87/19,300.95 = 6,629.43/x
  3. Step 3: Cross multiply
    12,864.87x = 19,300.95 × 6,629.43
  4. Step 4: Simplify right side
    12,864.87x = 127,954,296.96
  5. Step 5: Solve for x
    x = 127,954,296.96/12,864.87
  6. Step 6: Final answer
    x = 9,946.02

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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.