Home / 18,768.02-28,128.08-10,328.96

Finding the Fourth Proportional to 18,768.02, 28,128.08 and 10,328.96

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Solution

The fourth proportional to 18,768.02, 28,128.08 and 10,328.96 is: 15,480.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.02 : 28,128.08 = 10,328.96 : x
  2. Step 2: Convert to fraction form
    18,768.02/28,128.08 = 10,328.96/x
  3. Step 3: Cross multiply
    18,768.02x = 28,128.08 × 10,328.96
  4. Step 4: Simplify right side
    18,768.02x = 290,533,620.91
  5. Step 5: Solve for x
    x = 290,533,620.91/18,768.02
  6. Step 6: Final answer
    x = 15,480.25

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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.