Home / 7,615.49-10,512.79-4,471.88

Finding the Fourth Proportional to 7,615.49, 10,512.79 and 4,471.88

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Solution

The fourth proportional to 7,615.49, 10,512.79 and 4,471.88 is: 6,173.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.49 : 10,512.79 = 4,471.88 : x
  2. Step 2: Convert to fraction form
    7,615.49/10,512.79 = 4,471.88/x
  3. Step 3: Cross multiply
    7,615.49x = 10,512.79 × 4,471.88
  4. Step 4: Simplify right side
    7,615.49x = 47,011,871.60
  5. Step 5: Solve for x
    x = 47,011,871.60/7,615.49
  6. Step 6: Final answer
    x = 6,173.19

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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.