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Finding the Fourth Proportional to 6,453.18, 9,679.95 and 1,836.18

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Solution

The fourth proportional to 6,453.18, 9,679.95 and 1,836.18 is: 2,754.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,453.18 : 9,679.95 = 1,836.18 : x
  2. Step 2: Convert to fraction form
    6,453.18/9,679.95 = 1,836.18/x
  3. Step 3: Cross multiply
    6,453.18x = 9,679.95 × 1,836.18
  4. Step 4: Simplify right side
    6,453.18x = 17,774,130.59
  5. Step 5: Solve for x
    x = 17,774,130.59/6,453.18
  6. Step 6: Final answer
    x = 2,754.32

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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.