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Finding the Fourth Proportional to 15,609.80, 23,409.98 and 8,210.18

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Solution

The fourth proportional to 15,609.80, 23,409.98 and 8,210.18 is: 12,312.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,609.80 : 23,409.98 = 8,210.18 : x
  2. Step 2: Convert to fraction form
    15,609.80/23,409.98 = 8,210.18/x
  3. Step 3: Cross multiply
    15,609.80x = 23,409.98 × 8,210.18
  4. Step 4: Simplify right side
    15,609.80x = 192,200,149.60
  5. Step 5: Solve for x
    x = 192,200,149.60/15,609.80
  6. Step 6: Final answer
    x = 12,312.79

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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.