Home / 11,683.40-16,123.47-6,647.50

Finding the Fourth Proportional to 11,683.40, 16,123.47 and 6,647.50

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Solution

The fourth proportional to 11,683.40, 16,123.47 and 6,647.50 is: 9,173.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,683.40 : 16,123.47 = 6,647.50 : x
  2. Step 2: Convert to fraction form
    11,683.40/16,123.47 = 6,647.50/x
  3. Step 3: Cross multiply
    11,683.40x = 16,123.47 × 6,647.50
  4. Step 4: Simplify right side
    11,683.40x = 107,180,766.83
  5. Step 5: Solve for x
    x = 107,180,766.83/11,683.40
  6. Step 6: Final answer
    x = 9,173.77

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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.