Home / 14,776.22-20,390.35-8,401.91

Finding the Fourth Proportional to 14,776.22, 20,390.35 and 8,401.91

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Solution

The fourth proportional to 14,776.22, 20,390.35 and 8,401.91 is: 11,594.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,776.22 : 20,390.35 = 8,401.91 : x
  2. Step 2: Convert to fraction form
    14,776.22/20,390.35 = 8,401.91/x
  3. Step 3: Cross multiply
    14,776.22x = 20,390.35 × 8,401.91
  4. Step 4: Simplify right side
    14,776.22x = 171,317,885.57
  5. Step 5: Solve for x
    x = 171,317,885.57/14,776.22
  6. Step 6: Final answer
    x = 11,594.16

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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.