Home / 11,146.84-15,369.19-9,631.67

Finding the Fourth Proportional to 11,146.84, 15,369.19 and 9,631.67

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Solution

The fourth proportional to 11,146.84, 15,369.19 and 9,631.67 is: 13,280.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,146.84 : 15,369.19 = 9,631.67 : x
  2. Step 2: Convert to fraction form
    11,146.84/15,369.19 = 9,631.67/x
  3. Step 3: Cross multiply
    11,146.84x = 15,369.19 × 9,631.67
  4. Step 4: Simplify right side
    11,146.84x = 148,030,919.50
  5. Step 5: Solve for x
    x = 148,030,919.50/11,146.84
  6. Step 6: Final answer
    x = 13,280.08

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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.