Home / 14,340.70-21,511.05-12,809.80

Finding the Fourth Proportional to 14,340.70, 21,511.05 and 12,809.80

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Solution

The fourth proportional to 14,340.70, 21,511.05 and 12,809.80 is: 19,214.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,340.70 : 21,511.05 = 12,809.80 : x
  2. Step 2: Convert to fraction form
    14,340.70/21,511.05 = 12,809.80/x
  3. Step 3: Cross multiply
    14,340.70x = 21,511.05 × 12,809.80
  4. Step 4: Simplify right side
    14,340.70x = 275,552,248.29
  5. Step 5: Solve for x
    x = 275,552,248.29/14,340.70
  6. Step 6: Final answer
    x = 19,214.70

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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.