Home / 8,724.99-13,085.57-2,880.21

Finding the Fourth Proportional to 8,724.99, 13,085.57 and 2,880.21

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Solution

The fourth proportional to 8,724.99, 13,085.57 and 2,880.21 is: 4,319.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.99 : 13,085.57 = 2,880.21 : x
  2. Step 2: Convert to fraction form
    8,724.99/13,085.57 = 2,880.21/x
  3. Step 3: Cross multiply
    8,724.99x = 13,085.57 × 2,880.21
  4. Step 4: Simplify right side
    8,724.99x = 37,689,175.17
  5. Step 5: Solve for x
    x = 37,689,175.17/8,724.99
  6. Step 6: Final answer
    x = 4,319.68

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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.