Home / 10,892.80-16,339.20-7,393.60

Finding the Fourth Proportional to 10,892.80, 16,339.20 and 7,393.60

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Solution

The fourth proportional to 10,892.80, 16,339.20 and 7,393.60 is: 11,090.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,892.80 : 16,339.20 = 7,393.60 : x
  2. Step 2: Convert to fraction form
    10,892.80/16,339.20 = 7,393.60/x
  3. Step 3: Cross multiply
    10,892.80x = 16,339.20 × 7,393.60
  4. Step 4: Simplify right side
    10,892.80x = 120,805,509.12
  5. Step 5: Solve for x
    x = 120,805,509.12/10,892.80
  6. Step 6: Final answer
    x = 11,090.40

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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.