Home / 12,573.89-18,871.80-5,183.65

Finding the Fourth Proportional to 12,573.89, 18,871.80 and 5,183.65

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Solution

The fourth proportional to 12,573.89, 18,871.80 and 5,183.65 is: 7,780.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573.89 : 18,871.80 = 5,183.65 : x
  2. Step 2: Convert to fraction form
    12,573.89/18,871.80 = 5,183.65/x
  3. Step 3: Cross multiply
    12,573.89x = 18,871.80 × 5,183.65
  4. Step 4: Simplify right side
    12,573.89x = 97,824,806.07
  5. Step 5: Solve for x
    x = 97,824,806.07/12,573.89
  6. Step 6: Final answer
    x = 7,780.00

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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.