Home / 9,139.41-13,681.17-5,855.67

Finding the Fourth Proportional to 9,139.41, 13,681.17 and 5,855.67

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Solution

The fourth proportional to 9,139.41, 13,681.17 and 5,855.67 is: 8,765.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139.41 : 13,681.17 = 5,855.67 : x
  2. Step 2: Convert to fraction form
    9,139.41/13,681.17 = 5,855.67/x
  3. Step 3: Cross multiply
    9,139.41x = 13,681.17 × 5,855.67
  4. Step 4: Simplify right side
    9,139.41x = 80,112,416.73
  5. Step 5: Solve for x
    x = 80,112,416.73/9,139.41
  6. Step 6: Final answer
    x = 8,765.60

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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.