Home / 14,720.09-20,313.90-8,005.89

Finding the Fourth Proportional to 14,720.09, 20,313.90 and 8,005.89

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Solution

The fourth proportional to 14,720.09, 20,313.90 and 8,005.89 is: 11,048.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,720.09 : 20,313.90 = 8,005.89 : x
  2. Step 2: Convert to fraction form
    14,720.09/20,313.90 = 8,005.89/x
  3. Step 3: Cross multiply
    14,720.09x = 20,313.90 × 8,005.89
  4. Step 4: Simplify right side
    14,720.09x = 162,630,848.87
  5. Step 5: Solve for x
    x = 162,630,848.87/14,720.09
  6. Step 6: Final answer
    x = 11,048.22

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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.