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Finding the Fourth Proportional to 8,803.65, 13,205.48 and 2,140.15

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Solution

The fourth proportional to 8,803.65, 13,205.48 and 2,140.15 is: 3,210.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803.65 : 13,205.48 = 2,140.15 : x
  2. Step 2: Convert to fraction form
    8,803.65/13,205.48 = 2,140.15/x
  3. Step 3: Cross multiply
    8,803.65x = 13,205.48 × 2,140.15
  4. Step 4: Simplify right side
    8,803.65x = 28,261,708.02
  5. Step 5: Solve for x
    x = 28,261,708.02/8,803.65
  6. Step 6: Final answer
    x = 3,210.23

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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.