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Finding the Fourth Proportional to 10,933.40, 16,400.10 and 9,297.20

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Solution

The fourth proportional to 10,933.40, 16,400.10 and 9,297.20 is: 13,945.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,933.40 : 16,400.10 = 9,297.20 : x
  2. Step 2: Convert to fraction form
    10,933.40/16,400.10 = 9,297.20/x
  3. Step 3: Cross multiply
    10,933.40x = 16,400.10 × 9,297.20
  4. Step 4: Simplify right side
    10,933.40x = 152,475,009.72
  5. Step 5: Solve for x
    x = 152,475,009.72/10,933.40
  6. Step 6: Final answer
    x = 13,945.80

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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.