Home / 12,968.96-17,896.56-7,303.76

Finding the Fourth Proportional to 12,968.96, 17,896.56 and 7,303.76

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Solution

The fourth proportional to 12,968.96, 17,896.56 and 7,303.76 is: 10,078.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,968.96 : 17,896.56 = 7,303.76 : x
  2. Step 2: Convert to fraction form
    12,968.96/17,896.56 = 7,303.76/x
  3. Step 3: Cross multiply
    12,968.96x = 17,896.56 × 7,303.76
  4. Step 4: Simplify right side
    12,968.96x = 130,712,179.07
  5. Step 5: Solve for x
    x = 130,712,179.07/12,968.96
  6. Step 6: Final answer
    x = 10,078.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.