Home / 11,513.13-15,887.30-6,477.09

Finding the Fourth Proportional to 11,513.13, 15,887.30 and 6,477.09

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Solution

The fourth proportional to 11,513.13, 15,887.30 and 6,477.09 is: 8,937.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,513.13 : 15,887.30 = 6,477.09 : x
  2. Step 2: Convert to fraction form
    11,513.13/15,887.30 = 6,477.09/x
  3. Step 3: Cross multiply
    11,513.13x = 15,887.30 × 6,477.09
  4. Step 4: Simplify right side
    11,513.13x = 102,903,439.57
  5. Step 5: Solve for x
    x = 102,903,439.57/11,513.13
  6. Step 6: Final answer
    x = 8,937.92

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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.