Home / 10,807.20-16,185.20-7,325.60

Finding the Fourth Proportional to 10,807.20, 16,185.20 and 7,325.60

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Solution

The fourth proportional to 10,807.20, 16,185.20 and 7,325.60 is: 10,971.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,807.20 : 16,185.20 = 7,325.60 : x
  2. Step 2: Convert to fraction form
    10,807.20/16,185.20 = 7,325.60/x
  3. Step 3: Cross multiply
    10,807.20x = 16,185.20 × 7,325.60
  4. Step 4: Simplify right side
    10,807.20x = 118,566,301.12
  5. Step 5: Solve for x
    x = 118,566,301.12/10,807.20
  6. Step 6: Final answer
    x = 10,971.05

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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.