Home / 12,928.28-17,840.35-7,263.26

Finding the Fourth Proportional to 12,928.28, 17,840.35 and 7,263.26

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Solution

The fourth proportional to 12,928.28, 17,840.35 and 7,263.26 is: 10,022.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.28 : 17,840.35 = 7,263.26 : x
  2. Step 2: Convert to fraction form
    12,928.28/17,840.35 = 7,263.26/x
  3. Step 3: Cross multiply
    12,928.28x = 17,840.35 × 7,263.26
  4. Step 4: Simplify right side
    12,928.28x = 129,579,137.50
  5. Step 5: Solve for x
    x = 129,579,137.50/12,928.28
  6. Step 6: Final answer
    x = 10,022.93

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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.