Home / 11,790.88-16,271.54-6,485.74

Finding the Fourth Proportional to 11,790.88, 16,271.54 and 6,485.74

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Solution

The fourth proportional to 11,790.88, 16,271.54 and 6,485.74 is: 8,950.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,790.88 : 16,271.54 = 6,485.74 : x
  2. Step 2: Convert to fraction form
    11,790.88/16,271.54 = 6,485.74/x
  3. Step 3: Cross multiply
    11,790.88x = 16,271.54 × 6,485.74
  4. Step 4: Simplify right side
    11,790.88x = 105,532,977.84
  5. Step 5: Solve for x
    x = 105,532,977.84/11,790.88
  6. Step 6: Final answer
    x = 8,950.39

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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.