Home / 12,680.53-19,016.13-4,358.18

Finding the Fourth Proportional to 12,680.53, 19,016.13 and 4,358.18

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Solution

The fourth proportional to 12,680.53, 19,016.13 and 4,358.18 is: 6,535.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,680.53 : 19,016.13 = 4,358.18 : x
  2. Step 2: Convert to fraction form
    12,680.53/19,016.13 = 4,358.18/x
  3. Step 3: Cross multiply
    12,680.53x = 19,016.13 × 4,358.18
  4. Step 4: Simplify right side
    12,680.53x = 82,875,717.44
  5. Step 5: Solve for x
    x = 82,875,717.44/12,680.53
  6. Step 6: Final answer
    x = 6,535.67

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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.