Home / 14,767.10-20,380.65-8,479.34

Finding the Fourth Proportional to 14,767.10, 20,380.65 and 8,479.34

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Solution

The fourth proportional to 14,767.10, 20,380.65 and 8,479.34 is: 11,702.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,767.10 : 20,380.65 = 8,479.34 : x
  2. Step 2: Convert to fraction form
    14,767.10/20,380.65 = 8,479.34/x
  3. Step 3: Cross multiply
    14,767.10x = 20,380.65 × 8,479.34
  4. Step 4: Simplify right side
    14,767.10x = 172,814,460.77
  5. Step 5: Solve for x
    x = 172,814,460.77/14,767.10
  6. Step 6: Final answer
    x = 11,702.67

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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.