Home / 13,030.45-17,975.39-8,242.32

Finding the Fourth Proportional to 13,030.45, 17,975.39 and 8,242.32

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Solution

The fourth proportional to 13,030.45, 17,975.39 and 8,242.32 is: 11,370.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,030.45 : 17,975.39 = 8,242.32 : x
  2. Step 2: Convert to fraction form
    13,030.45/17,975.39 = 8,242.32/x
  3. Step 3: Cross multiply
    13,030.45x = 17,975.39 × 8,242.32
  4. Step 4: Simplify right side
    13,030.45x = 148,158,942.70
  5. Step 5: Solve for x
    x = 148,158,942.70/13,030.45
  6. Step 6: Final answer
    x = 11,370.21

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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.