Home / 18,953.36-26,155.80-10,995.72

Finding the Fourth Proportional to 18,953.36, 26,155.80 and 10,995.72

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Solution

The fourth proportional to 18,953.36, 26,155.80 and 10,995.72 is: 15,174.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,953.36 : 26,155.80 = 10,995.72 : x
  2. Step 2: Convert to fraction form
    18,953.36/26,155.80 = 10,995.72/x
  3. Step 3: Cross multiply
    18,953.36x = 26,155.80 × 10,995.72
  4. Step 4: Simplify right side
    18,953.36x = 287,601,853.18
  5. Step 5: Solve for x
    x = 287,601,853.18/18,953.36
  6. Step 6: Final answer
    x = 15,174.19

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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.