Home / 10,389.80-15,584.70-2,993.60

Finding the Fourth Proportional to 10,389.80, 15,584.70 and 2,993.60

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Solution

The fourth proportional to 10,389.80, 15,584.70 and 2,993.60 is: 4,490.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.80 : 15,584.70 = 2,993.60 : x
  2. Step 2: Convert to fraction form
    10,389.80/15,584.70 = 2,993.60/x
  3. Step 3: Cross multiply
    10,389.80x = 15,584.70 × 2,993.60
  4. Step 4: Simplify right side
    10,389.80x = 46,654,357.92
  5. Step 5: Solve for x
    x = 46,654,357.92/10,389.80
  6. Step 6: Final answer
    x = 4,490.40

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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.