Home / 12,271.44-16,925.40-7,791.36

Finding the Fourth Proportional to 12,271.44, 16,925.40 and 7,791.36

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Solution

The fourth proportional to 12,271.44, 16,925.40 and 7,791.36 is: 10,746.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,271.44 : 16,925.40 = 7,791.36 : x
  2. Step 2: Convert to fraction form
    12,271.44/16,925.40 = 7,791.36/x
  3. Step 3: Cross multiply
    12,271.44x = 16,925.40 × 7,791.36
  4. Step 4: Simplify right side
    12,271.44x = 131,871,884.54
  5. Step 5: Solve for x
    x = 131,871,884.54/12,271.44
  6. Step 6: Final answer
    x = 10,746.24

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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.