Home / 9,390.40-14,083.80-2,816.80

Finding the Fourth Proportional to 9,390.40, 14,083.80 and 2,816.80

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Solution

The fourth proportional to 9,390.40, 14,083.80 and 2,816.80 is: 4,224.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,390.40 : 14,083.80 = 2,816.80 : x
  2. Step 2: Convert to fraction form
    9,390.40/14,083.80 = 2,816.80/x
  3. Step 3: Cross multiply
    9,390.40x = 14,083.80 × 2,816.80
  4. Step 4: Simplify right side
    9,390.40x = 39,671,247.84
  5. Step 5: Solve for x
    x = 39,671,247.84/9,390.40
  6. Step 6: Final answer
    x = 4,224.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.