Home / 14,143.38-21,219.69-6,746.88

Finding the Fourth Proportional to 14,143.38, 21,219.69 and 6,746.88

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Solution

The fourth proportional to 14,143.38, 21,219.69 and 6,746.88 is: 10,122.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.38 : 21,219.69 = 6,746.88 : x
  2. Step 2: Convert to fraction form
    14,143.38/21,219.69 = 6,746.88/x
  3. Step 3: Cross multiply
    14,143.38x = 21,219.69 × 6,746.88
  4. Step 4: Simplify right side
    14,143.38x = 143,166,702.07
  5. Step 5: Solve for x
    x = 143,166,702.07/14,143.38
  6. Step 6: Final answer
    x = 10,122.52

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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.