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Finding the Fourth Proportional to 12,502.76, 18,758.06 and 7,510.88

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Solution

The fourth proportional to 12,502.76, 18,758.06 and 7,510.88 is: 11,268.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,502.76 : 18,758.06 = 7,510.88 : x
  2. Step 2: Convert to fraction form
    12,502.76/18,758.06 = 7,510.88/x
  3. Step 3: Cross multiply
    12,502.76x = 18,758.06 × 7,510.88
  4. Step 4: Simplify right side
    12,502.76x = 140,889,537.69
  5. Step 5: Solve for x
    x = 140,889,537.69/12,502.76
  6. Step 6: Final answer
    x = 11,268.67

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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.