Home / 18,955.96-26,152.86-10,995.28

Finding the Fourth Proportional to 18,955.96, 26,152.86 and 10,995.28

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Solution

The fourth proportional to 18,955.96, 26,152.86 and 10,995.28 is: 15,169.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,955.96 : 26,152.86 = 10,995.28 : x
  2. Step 2: Convert to fraction form
    18,955.96/26,152.86 = 10,995.28/x
  3. Step 3: Cross multiply
    18,955.96x = 26,152.86 × 10,995.28
  4. Step 4: Simplify right side
    18,955.96x = 287,558,018.50
  5. Step 5: Solve for x
    x = 287,558,018.50/18,955.96
  6. Step 6: Final answer
    x = 15,169.79

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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.