Home / 11,663.08-16,089.06-8,129.32

Finding the Fourth Proportional to 11,663.08, 16,089.06 and 8,129.32

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Solution

The fourth proportional to 11,663.08, 16,089.06 and 8,129.32 is: 11,214.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,663.08 : 16,089.06 = 8,129.32 : x
  2. Step 2: Convert to fraction form
    11,663.08/16,089.06 = 8,129.32/x
  3. Step 3: Cross multiply
    11,663.08x = 16,089.06 × 8,129.32
  4. Step 4: Simplify right side
    11,663.08x = 130,793,117.24
  5. Step 5: Solve for x
    x = 130,793,117.24/11,663.08
  6. Step 6: Final answer
    x = 11,214.29

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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.