Home / 18,702.03-28,077.54-13,157.97

Finding the Fourth Proportional to 18,702.03, 28,077.54 and 13,157.97

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Solution

The fourth proportional to 18,702.03, 28,077.54 and 13,157.97 is: 19,754.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.03 : 28,077.54 = 13,157.97 : x
  2. Step 2: Convert to fraction form
    18,702.03/28,077.54 = 13,157.97/x
  3. Step 3: Cross multiply
    18,702.03x = 28,077.54 × 13,157.97
  4. Step 4: Simplify right side
    18,702.03x = 369,443,428.99
  5. Step 5: Solve for x
    x = 369,443,428.99/18,702.03
  6. Step 6: Final answer
    x = 19,754.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.