Home / 12,193.98-16,821.51-7,710.18

Finding the Fourth Proportional to 12,193.98, 16,821.51 and 7,710.18

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Solution

The fourth proportional to 12,193.98, 16,821.51 and 7,710.18 is: 10,636.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,193.98 : 16,821.51 = 7,710.18 : x
  2. Step 2: Convert to fraction form
    12,193.98/16,821.51 = 7,710.18/x
  3. Step 3: Cross multiply
    12,193.98x = 16,821.51 × 7,710.18
  4. Step 4: Simplify right side
    12,193.98x = 129,696,869.97
  5. Step 5: Solve for x
    x = 129,696,869.97/12,193.98
  6. Step 6: Final answer
    x = 10,636.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.