Home / 15,240.64-21,033.18-8,528.42

Finding the Fourth Proportional to 15,240.64, 21,033.18 and 8,528.42

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Solution

The fourth proportional to 15,240.64, 21,033.18 and 8,528.42 is: 11,769.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,240.64 : 21,033.18 = 8,528.42 : x
  2. Step 2: Convert to fraction form
    15,240.64/21,033.18 = 8,528.42/x
  3. Step 3: Cross multiply
    15,240.64x = 21,033.18 × 8,528.42
  4. Step 4: Simplify right side
    15,240.64x = 179,379,792.98
  5. Step 5: Solve for x
    x = 179,379,792.98/15,240.64
  6. Step 6: Final answer
    x = 11,769.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.