Home / 12,629.58-17,427.87-7,039.50

Finding the Fourth Proportional to 12,629.58, 17,427.87 and 7,039.50

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Solution

The fourth proportional to 12,629.58, 17,427.87 and 7,039.50 is: 9,713.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.58 : 17,427.87 = 7,039.50 : x
  2. Step 2: Convert to fraction form
    12,629.58/17,427.87 = 7,039.50/x
  3. Step 3: Cross multiply
    12,629.58x = 17,427.87 × 7,039.50
  4. Step 4: Simplify right side
    12,629.58x = 122,683,490.87
  5. Step 5: Solve for x
    x = 122,683,490.87/12,629.58
  6. Step 6: Final answer
    x = 9,713.98

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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.