Home / 11,271.83-15,556.29-6,491.93

Finding the Fourth Proportional to 11,271.83, 15,556.29 and 6,491.93

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Solution

The fourth proportional to 11,271.83, 15,556.29 and 6,491.93 is: 8,959.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,271.83 : 15,556.29 = 6,491.93 : x
  2. Step 2: Convert to fraction form
    11,271.83/15,556.29 = 6,491.93/x
  3. Step 3: Cross multiply
    11,271.83x = 15,556.29 × 6,491.93
  4. Step 4: Simplify right side
    11,271.83x = 100,990,384.63
  5. Step 5: Solve for x
    x = 100,990,384.63/11,271.83
  6. Step 6: Final answer
    x = 8,959.54

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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.