Home / 13,077.26-18,046.23-7,108.77

Finding the Fourth Proportional to 13,077.26, 18,046.23 and 7,108.77

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Solution

The fourth proportional to 13,077.26, 18,046.23 and 7,108.77 is: 9,809.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,077.26 : 18,046.23 = 7,108.77 : x
  2. Step 2: Convert to fraction form
    13,077.26/18,046.23 = 7,108.77/x
  3. Step 3: Cross multiply
    13,077.26x = 18,046.23 × 7,108.77
  4. Step 4: Simplify right side
    13,077.26x = 128,286,539.45
  5. Step 5: Solve for x
    x = 128,286,539.45/13,077.26
  6. Step 6: Final answer
    x = 9,809.90

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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.