Home / 11,008.40-16,490.20-6,835.60

Finding the Fourth Proportional to 11,008.40, 16,490.20 and 6,835.60

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Solution

The fourth proportional to 11,008.40, 16,490.20 and 6,835.60 is: 10,239.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,008.40 : 16,490.20 = 6,835.60 : x
  2. Step 2: Convert to fraction form
    11,008.40/16,490.20 = 6,835.60/x
  3. Step 3: Cross multiply
    11,008.40x = 16,490.20 × 6,835.60
  4. Step 4: Simplify right side
    11,008.40x = 112,720,411.12
  5. Step 5: Solve for x
    x = 112,720,411.12/11,008.40
  6. Step 6: Final answer
    x = 10,239.49

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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.