Home / 12,555.27-17,325.23-6,889.86

Finding the Fourth Proportional to 12,555.27, 17,325.23 and 6,889.86

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Solution

The fourth proportional to 12,555.27, 17,325.23 and 6,889.86 is: 9,507.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.27 : 17,325.23 = 6,889.86 : x
  2. Step 2: Convert to fraction form
    12,555.27/17,325.23 = 6,889.86/x
  3. Step 3: Cross multiply
    12,555.27x = 17,325.23 × 6,889.86
  4. Step 4: Simplify right side
    12,555.27x = 119,368,374.72
  5. Step 5: Solve for x
    x = 119,368,374.72/12,555.27
  6. Step 6: Final answer
    x = 9,507.43

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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.