Home / 9,543.63-13,170.21-5,351.88

Finding the Fourth Proportional to 9,543.63, 13,170.21 and 5,351.88

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Solution

The fourth proportional to 9,543.63, 13,170.21 and 5,351.88 is: 7,385.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,543.63 : 13,170.21 = 5,351.88 : x
  2. Step 2: Convert to fraction form
    9,543.63/13,170.21 = 5,351.88/x
  3. Step 3: Cross multiply
    9,543.63x = 13,170.21 × 5,351.88
  4. Step 4: Simplify right side
    9,543.63x = 70,485,383.49
  5. Step 5: Solve for x
    x = 70,485,383.49/9,543.63
  6. Step 6: Final answer
    x = 7,385.59

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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.