Home / 8,741.80-13,112.70-5,631.40

Finding the Fourth Proportional to 8,741.80, 13,112.70 and 5,631.40

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Solution

The fourth proportional to 8,741.80, 13,112.70 and 5,631.40 is: 8,447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,741.80 : 13,112.70 = 5,631.40 : x
  2. Step 2: Convert to fraction form
    8,741.80/13,112.70 = 5,631.40/x
  3. Step 3: Cross multiply
    8,741.80x = 13,112.70 × 5,631.40
  4. Step 4: Simplify right side
    8,741.80x = 73,842,858.78
  5. Step 5: Solve for x
    x = 73,842,858.78/8,741.80
  6. Step 6: Final answer
    x = 8,447.10

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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.