Home / 12,731.64-19,078.96-9,041.08

Finding the Fourth Proportional to 12,731.64, 19,078.96 and 9,041.08

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Solution

The fourth proportional to 12,731.64, 19,078.96 and 9,041.08 is: 13,548.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731.64 : 19,078.96 = 9,041.08 : x
  2. Step 2: Convert to fraction form
    12,731.64/19,078.96 = 9,041.08/x
  3. Step 3: Cross multiply
    12,731.64x = 19,078.96 × 9,041.08
  4. Step 4: Simplify right side
    12,731.64x = 172,494,403.68
  5. Step 5: Solve for x
    x = 172,494,403.68/12,731.64
  6. Step 6: Final answer
    x = 13,548.48

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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.