Home / 13,359.55-18,430.39-8,051.35

Finding the Fourth Proportional to 13,359.55, 18,430.39 and 8,051.35

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Solution

The fourth proportional to 13,359.55, 18,430.39 and 8,051.35 is: 11,107.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.55 : 18,430.39 = 8,051.35 : x
  2. Step 2: Convert to fraction form
    13,359.55/18,430.39 = 8,051.35/x
  3. Step 3: Cross multiply
    13,359.55x = 18,430.39 × 8,051.35
  4. Step 4: Simplify right side
    13,359.55x = 148,389,520.53
  5. Step 5: Solve for x
    x = 148,389,520.53/13,359.55
  6. Step 6: Final answer
    x = 11,107.37

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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.