Home / 16,959.79-23,403.36-9,405.84

Finding the Fourth Proportional to 16,959.79, 23,403.36 and 9,405.84

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Solution

The fourth proportional to 16,959.79, 23,403.36 and 9,405.84 is: 12,979.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,959.79 : 23,403.36 = 9,405.84 : x
  2. Step 2: Convert to fraction form
    16,959.79/23,403.36 = 9,405.84/x
  3. Step 3: Cross multiply
    16,959.79x = 23,403.36 × 9,405.84
  4. Step 4: Simplify right side
    16,959.79x = 220,128,259.62
  5. Step 5: Solve for x
    x = 220,128,259.62/16,959.79
  6. Step 6: Final answer
    x = 12,979.42

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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.