Home / 18,887.18-26,063.79-10,389.32

Finding the Fourth Proportional to 18,887.18, 26,063.79 and 10,389.32

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Solution

The fourth proportional to 18,887.18, 26,063.79 and 10,389.32 is: 14,336.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887.18 : 26,063.79 = 10,389.32 : x
  2. Step 2: Convert to fraction form
    18,887.18/26,063.79 = 10,389.32/x
  3. Step 3: Cross multiply
    18,887.18x = 26,063.79 × 10,389.32
  4. Step 4: Simplify right side
    18,887.18x = 270,785,054.72
  5. Step 5: Solve for x
    x = 270,785,054.72/18,887.18
  6. Step 6: Final answer
    x = 14,336.98

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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.