Home / 18,702.38-25,807.48-10,318.34

Finding the Fourth Proportional to 18,702.38, 25,807.48 and 10,318.34

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Solution

The fourth proportional to 18,702.38, 25,807.48 and 10,318.34 is: 14,238.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.38 : 25,807.48 = 10,318.34 : x
  2. Step 2: Convert to fraction form
    18,702.38/25,807.48 = 10,318.34/x
  3. Step 3: Cross multiply
    18,702.38x = 25,807.48 × 10,318.34
  4. Step 4: Simplify right side
    18,702.38x = 266,290,353.18
  5. Step 5: Solve for x
    x = 266,290,353.18/18,702.38
  6. Step 6: Final answer
    x = 14,238.31

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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.