Home / 19,528.70-26,953.25-11,145.20

Finding the Fourth Proportional to 19,528.70, 26,953.25 and 11,145.20

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Solution

The fourth proportional to 19,528.70, 26,953.25 and 11,145.20 is: 15,382.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,528.70 : 26,953.25 = 11,145.20 : x
  2. Step 2: Convert to fraction form
    19,528.70/26,953.25 = 11,145.20/x
  3. Step 3: Cross multiply
    19,528.70x = 26,953.25 × 11,145.20
  4. Step 4: Simplify right side
    19,528.70x = 300,399,171.41
  5. Step 5: Solve for x
    x = 300,399,171.41/19,528.70
  6. Step 6: Final answer
    x = 15,382.45

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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.