Home / 14,746.39-20,352.27-8,778.67

Finding the Fourth Proportional to 14,746.39, 20,352.27 and 8,778.67

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Solution

The fourth proportional to 14,746.39, 20,352.27 and 8,778.67 is: 12,115.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,746.39 : 20,352.27 = 8,778.67 : x
  2. Step 2: Convert to fraction form
    14,746.39/20,352.27 = 8,778.67/x
  3. Step 3: Cross multiply
    14,746.39x = 20,352.27 × 8,778.67
  4. Step 4: Simplify right side
    14,746.39x = 178,665,862.08
  5. Step 5: Solve for x
    x = 178,665,862.08/14,746.39
  6. Step 6: Final answer
    x = 12,115.91

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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.