Home / 13,437.02-18,542.69-7,694.28

Finding the Fourth Proportional to 13,437.02, 18,542.69 and 7,694.28

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Solution

The fourth proportional to 13,437.02, 18,542.69 and 7,694.28 is: 10,617.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.02 : 18,542.69 = 7,694.28 : x
  2. Step 2: Convert to fraction form
    13,437.02/18,542.69 = 7,694.28/x
  3. Step 3: Cross multiply
    13,437.02x = 18,542.69 × 7,694.28
  4. Step 4: Simplify right side
    13,437.02x = 142,672,610.34
  5. Step 5: Solve for x
    x = 142,672,610.34/13,437.02
  6. Step 6: Final answer
    x = 10,617.88

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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.