Home / 16,939.71-23,378.40-9,386.37

Finding the Fourth Proportional to 16,939.71, 23,378.40 and 9,386.37

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Solution

The fourth proportional to 16,939.71, 23,378.40 and 9,386.37 is: 12,954.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,939.71 : 23,378.40 = 9,386.37 : x
  2. Step 2: Convert to fraction form
    16,939.71/23,378.40 = 9,386.37/x
  3. Step 3: Cross multiply
    16,939.71x = 23,378.40 × 9,386.37
  4. Step 4: Simplify right side
    16,939.71x = 219,438,312.41
  5. Step 5: Solve for x
    x = 219,438,312.41/16,939.71
  6. Step 6: Final answer
    x = 12,954.08

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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.