Home / 11,508.08-15,885.06-7,975.94

Finding the Fourth Proportional to 11,508.08, 15,885.06 and 7,975.94

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Solution

The fourth proportional to 11,508.08, 15,885.06 and 7,975.94 is: 11,009.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,508.08 : 15,885.06 = 7,975.94 : x
  2. Step 2: Convert to fraction form
    11,508.08/15,885.06 = 7,975.94/x
  3. Step 3: Cross multiply
    11,508.08x = 15,885.06 × 7,975.94
  4. Step 4: Simplify right side
    11,508.08x = 126,698,285.46
  5. Step 5: Solve for x
    x = 126,698,285.46/11,508.08
  6. Step 6: Final answer
    x = 11,009.51

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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.