Home / 16,959.14-23,403.36-9,405.50

Finding the Fourth Proportional to 16,959.14, 23,403.36 and 9,405.50

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Solution

The fourth proportional to 16,959.14, 23,403.36 and 9,405.50 is: 12,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,959.14 : 23,403.36 = 9,405.50 : x
  2. Step 2: Convert to fraction form
    16,959.14/23,403.36 = 9,405.50/x
  3. Step 3: Cross multiply
    16,959.14x = 23,403.36 × 9,405.50
  4. Step 4: Simplify right side
    16,959.14x = 220,120,302.48
  5. Step 5: Solve for x
    x = 220,120,302.48/16,959.14
  6. Step 6: Final answer
    x = 12,979.45

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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.