Home / 12,271.80-18,399.64-5,256.36

Finding the Fourth Proportional to 12,271.80, 18,399.64 and 5,256.36

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Solution

The fourth proportional to 12,271.80, 18,399.64 and 5,256.36 is: 7,881.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,271.80 : 18,399.64 = 5,256.36 : x
  2. Step 2: Convert to fraction form
    12,271.80/18,399.64 = 5,256.36/x
  3. Step 3: Cross multiply
    12,271.80x = 18,399.64 × 5,256.36
  4. Step 4: Simplify right side
    12,271.80x = 96,715,131.71
  5. Step 5: Solve for x
    x = 96,715,131.71/12,271.80
  6. Step 6: Final answer
    x = 7,881.09

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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.