Home / 9,012.72-12,436.64-6,182.51

Finding the Fourth Proportional to 9,012.72, 12,436.64 and 6,182.51

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Solution

The fourth proportional to 9,012.72, 12,436.64 and 6,182.51 is: 8,531.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,012.72 : 12,436.64 = 6,182.51 : x
  2. Step 2: Convert to fraction form
    9,012.72/12,436.64 = 6,182.51/x
  3. Step 3: Cross multiply
    9,012.72x = 12,436.64 × 6,182.51
  4. Step 4: Simplify right side
    9,012.72x = 76,889,558.07
  5. Step 5: Solve for x
    x = 76,889,558.07/9,012.72
  6. Step 6: Final answer
    x = 8,531.23

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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.