Home / 19,218.67-28,835.70-9,355.30

Finding the Fourth Proportional to 19,218.67, 28,835.70 and 9,355.30

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Solution

The fourth proportional to 19,218.67, 28,835.70 and 9,355.30 is: 14,036.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218.67 : 28,835.70 = 9,355.30 : x
  2. Step 2: Convert to fraction form
    19,218.67/28,835.70 = 9,355.30/x
  3. Step 3: Cross multiply
    19,218.67x = 28,835.70 × 9,355.30
  4. Step 4: Simplify right side
    19,218.67x = 269,766,624.21
  5. Step 5: Solve for x
    x = 269,766,624.21/19,218.67
  6. Step 6: Final answer
    x = 14,036.70

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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.