Home / 13,077.24-18,043.74-9,542.40

Finding the Fourth Proportional to 13,077.24, 18,043.74 and 9,542.40

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Solution

The fourth proportional to 13,077.24, 18,043.74 and 9,542.40 is: 13,166.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,077.24 : 18,043.74 = 9,542.40 : x
  2. Step 2: Convert to fraction form
    13,077.24/18,043.74 = 9,542.40/x
  3. Step 3: Cross multiply
    13,077.24x = 18,043.74 × 9,542.40
  4. Step 4: Simplify right side
    13,077.24x = 172,180,584.58
  5. Step 5: Solve for x
    x = 172,180,584.58/13,077.24
  6. Step 6: Final answer
    x = 13,166.43

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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.