Home / 15,764.80-23,647.20-8,766.40

Finding the Fourth Proportional to 15,764.80, 23,647.20 and 8,766.40

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Solution

The fourth proportional to 15,764.80, 23,647.20 and 8,766.40 is: 13,149.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,764.80 : 23,647.20 = 8,766.40 : x
  2. Step 2: Convert to fraction form
    15,764.80/23,647.20 = 8,766.40/x
  3. Step 3: Cross multiply
    15,764.80x = 23,647.20 × 8,766.40
  4. Step 4: Simplify right side
    15,764.80x = 207,300,814.08
  5. Step 5: Solve for x
    x = 207,300,814.08/15,764.80
  6. Step 6: Final answer
    x = 13,149.60

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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.