Home / 12,128.49-16,737.15-6,823.30

Finding the Fourth Proportional to 12,128.49, 16,737.15 and 6,823.30

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Solution

The fourth proportional to 12,128.49, 16,737.15 and 6,823.30 is: 9,416.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128.49 : 16,737.15 = 6,823.30 : x
  2. Step 2: Convert to fraction form
    12,128.49/16,737.15 = 6,823.30/x
  3. Step 3: Cross multiply
    12,128.49x = 16,737.15 × 6,823.30
  4. Step 4: Simplify right side
    12,128.49x = 114,202,595.60
  5. Step 5: Solve for x
    x = 114,202,595.60/12,128.49
  6. Step 6: Final answer
    x = 9,416.06

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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.