Home / 15,443.73-21,313.44-8,729.98

Finding the Fourth Proportional to 15,443.73, 21,313.44 and 8,729.98

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Solution

The fourth proportional to 15,443.73, 21,313.44 and 8,729.98 is: 12,047.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,443.73 : 21,313.44 = 8,729.98 : x
  2. Step 2: Convert to fraction form
    15,443.73/21,313.44 = 8,729.98/x
  3. Step 3: Cross multiply
    15,443.73x = 21,313.44 × 8,729.98
  4. Step 4: Simplify right side
    15,443.73x = 186,065,851.65
  5. Step 5: Solve for x
    x = 186,065,851.65/15,443.73
  6. Step 6: Final answer
    x = 12,047.99

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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.