Home / 15,443.08-21,311.52-8,369.48

Finding the Fourth Proportional to 15,443.08, 21,311.52 and 8,369.48

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Solution

The fourth proportional to 15,443.08, 21,311.52 and 8,369.48 is: 11,549.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,443.08 : 21,311.52 = 8,369.48 : x
  2. Step 2: Convert to fraction form
    15,443.08/21,311.52 = 8,369.48/x
  3. Step 3: Cross multiply
    15,443.08x = 21,311.52 × 8,369.48
  4. Step 4: Simplify right side
    15,443.08x = 178,366,340.41
  5. Step 5: Solve for x
    x = 178,366,340.41/15,443.08
  6. Step 6: Final answer
    x = 11,549.92

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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.