Home / 18,078.16-24,948-10,120.72

Finding the Fourth Proportional to 18,078.16, 24,948 and 10,120.72

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Solution

The fourth proportional to 18,078.16, 24,948 and 10,120.72 is: 13,966.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,078.16 : 24,948 = 10,120.72 : x
  2. Step 2: Convert to fraction form
    18,078.16/24,948 = 10,120.72/x
  3. Step 3: Cross multiply
    18,078.16x = 24,948 × 10,120.72
  4. Step 4: Simplify right side
    18,078.16x = 252,491,722.56
  5. Step 5: Solve for x
    x = 252,491,722.56/18,078.16
  6. Step 6: Final answer
    x = 13,966.67

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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.