Home / 13,542.12-18,693.86-8,830.44

Finding the Fourth Proportional to 13,542.12, 18,693.86 and 8,830.44

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Solution

The fourth proportional to 13,542.12, 18,693.86 and 8,830.44 is: 12,189.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542.12 : 18,693.86 = 8,830.44 : x
  2. Step 2: Convert to fraction form
    13,542.12/18,693.86 = 8,830.44/x
  3. Step 3: Cross multiply
    13,542.12x = 18,693.86 × 8,830.44
  4. Step 4: Simplify right side
    13,542.12x = 165,075,009.10
  5. Step 5: Solve for x
    x = 165,075,009.10/13,542.12
  6. Step 6: Final answer
    x = 12,189.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.