Home / 8,551.06-12,829.35-2,628.40

Finding the Fourth Proportional to 8,551.06, 12,829.35 and 2,628.40

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Solution

The fourth proportional to 8,551.06, 12,829.35 and 2,628.40 is: 3,943.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,551.06 : 12,829.35 = 2,628.40 : x
  2. Step 2: Convert to fraction form
    8,551.06/12,829.35 = 2,628.40/x
  3. Step 3: Cross multiply
    8,551.06x = 12,829.35 × 2,628.40
  4. Step 4: Simplify right side
    8,551.06x = 33,720,663.54
  5. Step 5: Solve for x
    x = 33,720,663.54/8,551.06
  6. Step 6: Final answer
    x = 3,943.45

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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.