Home / 14,754.64-20,360.80-8,040.31

Finding the Fourth Proportional to 14,754.64, 20,360.80 and 8,040.31

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Solution

The fourth proportional to 14,754.64, 20,360.80 and 8,040.31 is: 11,095.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,754.64 : 20,360.80 = 8,040.31 : x
  2. Step 2: Convert to fraction form
    14,754.64/20,360.80 = 8,040.31/x
  3. Step 3: Cross multiply
    14,754.64x = 20,360.80 × 8,040.31
  4. Step 4: Simplify right side
    14,754.64x = 163,707,072.85
  5. Step 5: Solve for x
    x = 163,707,072.85/14,754.64
  6. Step 6: Final answer
    x = 11,095.30

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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.