Home / 13,770.09-19,002.68-7,482.46

Finding the Fourth Proportional to 13,770.09, 19,002.68 and 7,482.46

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Solution

The fourth proportional to 13,770.09, 19,002.68 and 7,482.46 is: 10,325.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,770.09 : 19,002.68 = 7,482.46 : x
  2. Step 2: Convert to fraction form
    13,770.09/19,002.68 = 7,482.46/x
  3. Step 3: Cross multiply
    13,770.09x = 19,002.68 × 7,482.46
  4. Step 4: Simplify right side
    13,770.09x = 142,186,755.58
  5. Step 5: Solve for x
    x = 142,186,755.58/13,770.09
  6. Step 6: Final answer
    x = 10,325.77

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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.