Home / 10,993.49-15,171.75-6,211.77

Finding the Fourth Proportional to 10,993.49, 15,171.75 and 6,211.77

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Solution

The fourth proportional to 10,993.49, 15,171.75 and 6,211.77 is: 8,572.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,993.49 : 15,171.75 = 6,211.77 : x
  2. Step 2: Convert to fraction form
    10,993.49/15,171.75 = 6,211.77/x
  3. Step 3: Cross multiply
    10,993.49x = 15,171.75 × 6,211.77
  4. Step 4: Simplify right side
    10,993.49x = 94,243,421.50
  5. Step 5: Solve for x
    x = 94,243,421.50/10,993.49
  6. Step 6: Final answer
    x = 8,572.66

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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.