Home / 9,170.23-12,654.53-5,137.45

Finding the Fourth Proportional to 9,170.23, 12,654.53 and 5,137.45

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Solution

The fourth proportional to 9,170.23, 12,654.53 and 5,137.45 is: 7,089.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,170.23 : 12,654.53 = 5,137.45 : x
  2. Step 2: Convert to fraction form
    9,170.23/12,654.53 = 5,137.45/x
  3. Step 3: Cross multiply
    9,170.23x = 12,654.53 × 5,137.45
  4. Step 4: Simplify right side
    9,170.23x = 65,011,951.88
  5. Step 5: Solve for x
    x = 65,011,951.88/9,170.23
  6. Step 6: Final answer
    x = 7,089.46

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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.