Home / 12,480.47-18,715.23-4,683.82

Finding the Fourth Proportional to 12,480.47, 18,715.23 and 4,683.82

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Solution

The fourth proportional to 12,480.47, 18,715.23 and 4,683.82 is: 7,023.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480.47 : 18,715.23 = 4,683.82 : x
  2. Step 2: Convert to fraction form
    12,480.47/18,715.23 = 4,683.82/x
  3. Step 3: Cross multiply
    12,480.47x = 18,715.23 × 4,683.82
  4. Step 4: Simplify right side
    12,480.47x = 87,658,675.00
  5. Step 5: Solve for x
    x = 87,658,675.00/12,480.47
  6. Step 6: Final answer
    x = 7,023.67

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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.