Home / 14,904.72-20,568.86-8,189.92

Finding the Fourth Proportional to 14,904.72, 20,568.86 and 8,189.92

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Solution

The fourth proportional to 14,904.72, 20,568.86 and 8,189.92 is: 11,302.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,904.72 : 20,568.86 = 8,189.92 : x
  2. Step 2: Convert to fraction form
    14,904.72/20,568.86 = 8,189.92/x
  3. Step 3: Cross multiply
    14,904.72x = 20,568.86 × 8,189.92
  4. Step 4: Simplify right side
    14,904.72x = 168,457,317.89
  5. Step 5: Solve for x
    x = 168,457,317.89/14,904.72
  6. Step 6: Final answer
    x = 11,302.28

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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.