Home / 18,907.19-28,365.02-5,760.60

Finding the Fourth Proportional to 18,907.19, 28,365.02 and 5,760.60

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Solution

The fourth proportional to 18,907.19, 28,365.02 and 5,760.60 is: 8,642.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,907.19 : 28,365.02 = 5,760.60 : x
  2. Step 2: Convert to fraction form
    18,907.19/28,365.02 = 5,760.60/x
  3. Step 3: Cross multiply
    18,907.19x = 28,365.02 × 5,760.60
  4. Step 4: Simplify right side
    18,907.19x = 163,399,534.21
  5. Step 5: Solve for x
    x = 163,399,534.21/18,907.19
  6. Step 6: Final answer
    x = 8,642.19

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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.