Home / 16,939.56-23,378.40-9,386.52

Finding the Fourth Proportional to 16,939.56, 23,378.40 and 9,386.52

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Solution

The fourth proportional to 16,939.56, 23,378.40 and 9,386.52 is: 12,954.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,939.56 : 23,378.40 = 9,386.52 : x
  2. Step 2: Convert to fraction form
    16,939.56/23,378.40 = 9,386.52/x
  3. Step 3: Cross multiply
    16,939.56x = 23,378.40 × 9,386.52
  4. Step 4: Simplify right side
    16,939.56x = 219,441,819.17
  5. Step 5: Solve for x
    x = 219,441,819.17/16,939.56
  6. Step 6: Final answer
    x = 12,954.40

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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.