Home / 12,953.22-19,427.79-4,631.70

Finding the Fourth Proportional to 12,953.22, 19,427.79 and 4,631.70

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Solution

The fourth proportional to 12,953.22, 19,427.79 and 4,631.70 is: 6,946.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953.22 : 19,427.79 = 4,631.70 : x
  2. Step 2: Convert to fraction form
    12,953.22/19,427.79 = 4,631.70/x
  3. Step 3: Cross multiply
    12,953.22x = 19,427.79 × 4,631.70
  4. Step 4: Simplify right side
    12,953.22x = 89,983,694.94
  5. Step 5: Solve for x
    x = 89,983,694.94/12,953.22
  6. Step 6: Final answer
    x = 6,946.82

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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.