Home / 13,218.93-19,830.69-4,453.92

Finding the Fourth Proportional to 13,218.93, 19,830.69 and 4,453.92

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Solution

The fourth proportional to 13,218.93, 19,830.69 and 4,453.92 is: 6,681.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.93 : 19,830.69 = 4,453.92 : x
  2. Step 2: Convert to fraction form
    13,218.93/19,830.69 = 4,453.92/x
  3. Step 3: Cross multiply
    13,218.93x = 19,830.69 × 4,453.92
  4. Step 4: Simplify right side
    13,218.93x = 88,324,306.80
  5. Step 5: Solve for x
    x = 88,324,306.80/13,218.93
  6. Step 6: Final answer
    x = 6,681.65

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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.