Home / 15,813.12-23,716.80-6,450.72

Finding the Fourth Proportional to 15,813.12, 23,716.80 and 6,450.72

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Solution

The fourth proportional to 15,813.12, 23,716.80 and 6,450.72 is: 9,674.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,813.12 : 23,716.80 = 6,450.72 : x
  2. Step 2: Convert to fraction form
    15,813.12/23,716.80 = 6,450.72/x
  3. Step 3: Cross multiply
    15,813.12x = 23,716.80 × 6,450.72
  4. Step 4: Simplify right side
    15,813.12x = 152,990,436.10
  5. Step 5: Solve for x
    x = 152,990,436.10/15,813.12
  6. Step 6: Final answer
    x = 9,674.91

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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.