Home / 13,280.27-18,326.63-7,311.82

Finding the Fourth Proportional to 13,280.27, 18,326.63 and 7,311.82

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Solution

The fourth proportional to 13,280.27, 18,326.63 and 7,311.82 is: 10,090.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.27 : 18,326.63 = 7,311.82 : x
  2. Step 2: Convert to fraction form
    13,280.27/18,326.63 = 7,311.82/x
  3. Step 3: Cross multiply
    13,280.27x = 18,326.63 × 7,311.82
  4. Step 4: Simplify right side
    13,280.27x = 134,000,891.57
  5. Step 5: Solve for x
    x = 134,000,891.57/13,280.27
  6. Step 6: Final answer
    x = 10,090.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.