Home / 11,108.88-15,317.64-8,309.52

Finding the Fourth Proportional to 11,108.88, 15,317.64 and 8,309.52

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Solution

The fourth proportional to 11,108.88, 15,317.64 and 8,309.52 is: 11,457.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,108.88 : 15,317.64 = 8,309.52 : x
  2. Step 2: Convert to fraction form
    11,108.88/15,317.64 = 8,309.52/x
  3. Step 3: Cross multiply
    11,108.88x = 15,317.64 × 8,309.52
  4. Step 4: Simplify right side
    11,108.88x = 127,282,235.93
  5. Step 5: Solve for x
    x = 127,282,235.93/11,108.88
  6. Step 6: Final answer
    x = 11,457.70

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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.