Home / 18,563.16-27,848.34-5,415.60

Finding the Fourth Proportional to 18,563.16, 27,848.34 and 5,415.60

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Solution

The fourth proportional to 18,563.16, 27,848.34 and 5,415.60 is: 8,124.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,563.16 : 27,848.34 = 5,415.60 : x
  2. Step 2: Convert to fraction form
    18,563.16/27,848.34 = 5,415.60/x
  3. Step 3: Cross multiply
    18,563.16x = 27,848.34 × 5,415.60
  4. Step 4: Simplify right side
    18,563.16x = 150,815,470.10
  5. Step 5: Solve for x
    x = 150,815,470.10/18,563.16
  6. Step 6: Final answer
    x = 8,124.45

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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.