Home / 12,353.88-17,048.37-6,688.63

Finding the Fourth Proportional to 12,353.88, 17,048.37 and 6,688.63

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Solution

The fourth proportional to 12,353.88, 17,048.37 and 6,688.63 is: 9,230.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,353.88 : 17,048.37 = 6,688.63 : x
  2. Step 2: Convert to fraction form
    12,353.88/17,048.37 = 6,688.63/x
  3. Step 3: Cross multiply
    12,353.88x = 17,048.37 × 6,688.63
  4. Step 4: Simplify right side
    12,353.88x = 114,030,205.59
  5. Step 5: Solve for x
    x = 114,030,205.59/12,353.88
  6. Step 6: Final answer
    x = 9,230.32

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Half scale
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Double scale
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Similar ratio
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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.