Home / 16,947.89-23,382.83-9,869.30

Finding the Fourth Proportional to 16,947.89, 23,382.83 and 9,869.30

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Solution

The fourth proportional to 16,947.89, 23,382.83 and 9,869.30 is: 13,616.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,947.89 : 23,382.83 = 9,869.30 : x
  2. Step 2: Convert to fraction form
    16,947.89/23,382.83 = 9,869.30/x
  3. Step 3: Cross multiply
    16,947.89x = 23,382.83 × 9,869.30
  4. Step 4: Simplify right side
    16,947.89x = 230,772,071.88
  5. Step 5: Solve for x
    x = 230,772,071.88/16,947.89
  6. Step 6: Final answer
    x = 13,616.57

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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.