Home / 13,619.96-18,804.24-9,089.10

Finding the Fourth Proportional to 13,619.96, 18,804.24 and 9,089.10

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Solution

The fourth proportional to 13,619.96, 18,804.24 and 9,089.10 is: 12,548.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.96 : 18,804.24 = 9,089.10 : x
  2. Step 2: Convert to fraction form
    13,619.96/18,804.24 = 9,089.10/x
  3. Step 3: Cross multiply
    13,619.96x = 18,804.24 × 9,089.10
  4. Step 4: Simplify right side
    13,619.96x = 170,913,617.78
  5. Step 5: Solve for x
    x = 170,913,617.78/13,619.96
  6. Step 6: Final answer
    x = 12,548.76

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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.