Home / 10,245.80-15,368.70-9,042.95

Finding the Fourth Proportional to 10,245.80, 15,368.70 and 9,042.95

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Solution

The fourth proportional to 10,245.80, 15,368.70 and 9,042.95 is: 13,564.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,245.80 : 15,368.70 = 9,042.95 : x
  2. Step 2: Convert to fraction form
    10,245.80/15,368.70 = 9,042.95/x
  3. Step 3: Cross multiply
    10,245.80x = 15,368.70 × 9,042.95
  4. Step 4: Simplify right side
    10,245.80x = 138,978,385.67
  5. Step 5: Solve for x
    x = 138,978,385.67/10,245.80
  6. Step 6: Final answer
    x = 13,564.43

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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.