Home / 11,890.99-16,409.76-6,513.35

Finding the Fourth Proportional to 11,890.99, 16,409.76 and 6,513.35

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Solution

The fourth proportional to 11,890.99, 16,409.76 and 6,513.35 is: 8,988.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.99 : 16,409.76 = 6,513.35 : x
  2. Step 2: Convert to fraction form
    11,890.99/16,409.76 = 6,513.35/x
  3. Step 3: Cross multiply
    11,890.99x = 16,409.76 × 6,513.35
  4. Step 4: Simplify right side
    11,890.99x = 106,882,403.82
  5. Step 5: Solve for x
    x = 106,882,403.82/11,890.99
  6. Step 6: Final answer
    x = 8,988.52

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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.