Home / 14,702.45-20,286.13-8,328.48

Finding the Fourth Proportional to 14,702.45, 20,286.13 and 8,328.48

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Solution

The fourth proportional to 14,702.45, 20,286.13 and 8,328.48 is: 11,491.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,702.45 : 20,286.13 = 8,328.48 : x
  2. Step 2: Convert to fraction form
    14,702.45/20,286.13 = 8,328.48/x
  3. Step 3: Cross multiply
    14,702.45x = 20,286.13 × 8,328.48
  4. Step 4: Simplify right side
    14,702.45x = 168,952,724.48
  5. Step 5: Solve for x
    x = 168,952,724.48/14,702.45
  6. Step 6: Final answer
    x = 11,491.47

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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.