Home / 8,764.20-13,154.40-4,384.80

Finding the Fourth Proportional to 8,764.20, 13,154.40 and 4,384.80

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Solution

The fourth proportional to 8,764.20, 13,154.40 and 4,384.80 is: 6,581.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764.20 : 13,154.40 = 4,384.80 : x
  2. Step 2: Convert to fraction form
    8,764.20/13,154.40 = 4,384.80/x
  3. Step 3: Cross multiply
    8,764.20x = 13,154.40 × 4,384.80
  4. Step 4: Simplify right side
    8,764.20x = 57,679,413.12
  5. Step 5: Solve for x
    x = 57,679,413.12/8,764.20
  6. Step 6: Final answer
    x = 6,581.25

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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.