Home / 16,957.97-23,402.00-9,405.45

Finding the Fourth Proportional to 16,957.97, 23,402.00 and 9,405.45

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Solution

The fourth proportional to 16,957.97, 23,402.00 and 9,405.45 is: 12,979.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,957.97 : 23,402.00 = 9,405.45 : x
  2. Step 2: Convert to fraction form
    16,957.97/23,402.00 = 9,405.45/x
  3. Step 3: Cross multiply
    16,957.97x = 23,402.00 × 9,405.45
  4. Step 4: Simplify right side
    16,957.97x = 220,106,364.41
  5. Step 5: Solve for x
    x = 220,106,364.41/16,957.97
  6. Step 6: Final answer
    x = 12,979.52

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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.