Home / 12,859.24-19,271.35-7,239.59

Finding the Fourth Proportional to 12,859.24, 19,271.35 and 7,239.59

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Solution

The fourth proportional to 12,859.24, 19,271.35 and 7,239.59 is: 10,849.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,859.24 : 19,271.35 = 7,239.59 : x
  2. Step 2: Convert to fraction form
    12,859.24/19,271.35 = 7,239.59/x
  3. Step 3: Cross multiply
    12,859.24x = 19,271.35 × 7,239.59
  4. Step 4: Simplify right side
    12,859.24x = 139,516,745.75
  5. Step 5: Solve for x
    x = 139,516,745.75/12,859.24
  6. Step 6: Final answer
    x = 10,849.53

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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.