Home / 14,070.28-21,116.94-7,146.76

Finding the Fourth Proportional to 14,070.28, 21,116.94 and 7,146.76

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Solution

The fourth proportional to 14,070.28, 21,116.94 and 7,146.76 is: 10,725.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,070.28 : 21,116.94 = 7,146.76 : x
  2. Step 2: Convert to fraction form
    14,070.28/21,116.94 = 7,146.76/x
  3. Step 3: Cross multiply
    14,070.28x = 21,116.94 × 7,146.76
  4. Step 4: Simplify right side
    14,070.28x = 150,917,702.11
  5. Step 5: Solve for x
    x = 150,917,702.11/14,070.28
  6. Step 6: Final answer
    x = 10,725.99

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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.