Home / 11,122.66-15,267.50-9,835.51

Finding the Fourth Proportional to 11,122.66, 15,267.50 and 9,835.51

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Solution

The fourth proportional to 11,122.66, 15,267.50 and 9,835.51 is: 13,500.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.66 : 15,267.50 = 9,835.51 : x
  2. Step 2: Convert to fraction form
    11,122.66/15,267.50 = 9,835.51/x
  3. Step 3: Cross multiply
    11,122.66x = 15,267.50 × 9,835.51
  4. Step 4: Simplify right side
    11,122.66x = 150,163,648.93
  5. Step 5: Solve for x
    x = 150,163,648.93/11,122.66
  6. Step 6: Final answer
    x = 13,500.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.