Home / 13,239.93-18,271.53-7,650.93

Finding the Fourth Proportional to 13,239.93, 18,271.53 and 7,650.93

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Solution

The fourth proportional to 13,239.93, 18,271.53 and 7,650.93 is: 10,558.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.93 : 18,271.53 = 7,650.93 : x
  2. Step 2: Convert to fraction form
    13,239.93/18,271.53 = 7,650.93/x
  3. Step 3: Cross multiply
    13,239.93x = 18,271.53 × 7,650.93
  4. Step 4: Simplify right side
    13,239.93x = 139,794,197.02
  5. Step 5: Solve for x
    x = 139,794,197.02/13,239.93
  6. Step 6: Final answer
    x = 10,558.53

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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.