Home / 12,527.11-18,790.80-5,126.41

Finding the Fourth Proportional to 12,527.11, 18,790.80 and 5,126.41

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Solution

The fourth proportional to 12,527.11, 18,790.80 and 5,126.41 is: 7,689.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,527.11 : 18,790.80 = 5,126.41 : x
  2. Step 2: Convert to fraction form
    12,527.11/18,790.80 = 5,126.41/x
  3. Step 3: Cross multiply
    12,527.11x = 18,790.80 × 5,126.41
  4. Step 4: Simplify right side
    12,527.11x = 96,329,345.03
  5. Step 5: Solve for x
    x = 96,329,345.03/12,527.11
  6. Step 6: Final answer
    x = 7,689.67

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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.