Home / 7,012.90-10,523.40-2,630.80

Finding the Fourth Proportional to 7,012.90, 10,523.40 and 2,630.80

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Solution

The fourth proportional to 7,012.90, 10,523.40 and 2,630.80 is: 3,947.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,012.90 : 10,523.40 = 2,630.80 : x
  2. Step 2: Convert to fraction form
    7,012.90/10,523.40 = 2,630.80/x
  3. Step 3: Cross multiply
    7,012.90x = 10,523.40 × 2,630.80
  4. Step 4: Simplify right side
    7,012.90x = 27,684,960.72
  5. Step 5: Solve for x
    x = 27,684,960.72/7,012.90
  6. Step 6: Final answer
    x = 3,947.72

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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.