Home / 18,884.34-28,315.26-6,400.80

Finding the Fourth Proportional to 18,884.34, 28,315.26 and 6,400.80

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Solution

The fourth proportional to 18,884.34, 28,315.26 and 6,400.80 is: 9,597.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,884.34 : 28,315.26 = 6,400.80 : x
  2. Step 2: Convert to fraction form
    18,884.34/28,315.26 = 6,400.80/x
  3. Step 3: Cross multiply
    18,884.34x = 28,315.26 × 6,400.80
  4. Step 4: Simplify right side
    18,884.34x = 181,240,316.21
  5. Step 5: Solve for x
    x = 181,240,316.21/18,884.34
  6. Step 6: Final answer
    x = 9,597.39

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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.