Home / 8,724.86-13,084.50-2,880.08

Finding the Fourth Proportional to 8,724.86, 13,084.50 and 2,880.08

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Solution

The fourth proportional to 8,724.86, 13,084.50 and 2,880.08 is: 4,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.86 : 13,084.50 = 2,880.08 : x
  2. Step 2: Convert to fraction form
    8,724.86/13,084.50 = 2,880.08/x
  3. Step 3: Cross multiply
    8,724.86x = 13,084.50 × 2,880.08
  4. Step 4: Simplify right side
    8,724.86x = 37,684,406.76
  5. Step 5: Solve for x
    x = 37,684,406.76/8,724.86
  6. Step 6: Final answer
    x = 4,319.20

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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.