Home / 16,679.47-23,018.21-9,509.25

Finding the Fourth Proportional to 16,679.47, 23,018.21 and 9,509.25

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Solution

The fourth proportional to 16,679.47, 23,018.21 and 9,509.25 is: 13,123.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,679.47 : 23,018.21 = 9,509.25 : x
  2. Step 2: Convert to fraction form
    16,679.47/23,018.21 = 9,509.25/x
  3. Step 3: Cross multiply
    16,679.47x = 23,018.21 × 9,509.25
  4. Step 4: Simplify right side
    16,679.47x = 218,885,913.44
  5. Step 5: Solve for x
    x = 218,885,913.44/16,679.47
  6. Step 6: Final answer
    x = 13,123.07

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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.