Home / 13,576.14-18,735.30-7,910.76

Finding the Fourth Proportional to 13,576.14, 18,735.30 and 7,910.76

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Solution

The fourth proportional to 13,576.14, 18,735.30 and 7,910.76 is: 10,916.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576.14 : 18,735.30 = 7,910.76 : x
  2. Step 2: Convert to fraction form
    13,576.14/18,735.30 = 7,910.76/x
  3. Step 3: Cross multiply
    13,576.14x = 18,735.30 × 7,910.76
  4. Step 4: Simplify right side
    13,576.14x = 148,210,461.83
  5. Step 5: Solve for x
    x = 148,210,461.83/13,576.14
  6. Step 6: Final answer
    x = 10,916.98

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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.