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Finding the Fourth Proportional to 9,054.45, 13,545.23 and 7,835.40

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Solution

The fourth proportional to 9,054.45, 13,545.23 and 7,835.40 is: 11,721.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,054.45 : 13,545.23 = 7,835.40 : x
  2. Step 2: Convert to fraction form
    9,054.45/13,545.23 = 7,835.40/x
  3. Step 3: Cross multiply
    9,054.45x = 13,545.23 × 7,835.40
  4. Step 4: Simplify right side
    9,054.45x = 106,132,255.97
  5. Step 5: Solve for x
    x = 106,132,255.97/9,054.45
  6. Step 6: Final answer
    x = 11,721.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.