Home / 18,702.09-25,806.60-10,318.59

Finding the Fourth Proportional to 18,702.09, 25,806.60 and 10,318.59

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Solution

The fourth proportional to 18,702.09, 25,806.60 and 10,318.59 is: 14,238.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.09 : 25,806.60 = 10,318.59 : x
  2. Step 2: Convert to fraction form
    18,702.09/25,806.60 = 10,318.59/x
  3. Step 3: Cross multiply
    18,702.09x = 25,806.60 × 10,318.59
  4. Step 4: Simplify right side
    18,702.09x = 266,287,724.69
  5. Step 5: Solve for x
    x = 266,287,724.69/18,702.09
  6. Step 6: Final answer
    x = 14,238.39

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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.