Home / 13,430.30-18,529.58-8,051.63

Finding the Fourth Proportional to 13,430.30, 18,529.58 and 8,051.63

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Solution

The fourth proportional to 13,430.30, 18,529.58 and 8,051.63 is: 11,108.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.30 : 18,529.58 = 8,051.63 : x
  2. Step 2: Convert to fraction form
    13,430.30/18,529.58 = 8,051.63/x
  3. Step 3: Cross multiply
    13,430.30x = 18,529.58 × 8,051.63
  4. Step 4: Simplify right side
    13,430.30x = 149,193,281.96
  5. Step 5: Solve for x
    x = 149,193,281.96/13,430.30
  6. Step 6: Final answer
    x = 11,108.71

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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.