Home / 14,080.63-21,120.95-4,219.91

Finding the Fourth Proportional to 14,080.63, 21,120.95 and 4,219.91

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Solution

The fourth proportional to 14,080.63, 21,120.95 and 4,219.91 is: 6,329.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,080.63 : 21,120.95 = 4,219.91 : x
  2. Step 2: Convert to fraction form
    14,080.63/21,120.95 = 4,219.91/x
  3. Step 3: Cross multiply
    14,080.63x = 21,120.95 × 4,219.91
  4. Step 4: Simplify right side
    14,080.63x = 89,128,381.41
  5. Step 5: Solve for x
    x = 89,128,381.41/14,080.63
  6. Step 6: Final answer
    x = 6,329.86

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Double scale
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Similar ratio
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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.