Home / 18,506.88-25,539.52-10,123.28

Finding the Fourth Proportional to 18,506.88, 25,539.52 and 10,123.28

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Solution

The fourth proportional to 18,506.88, 25,539.52 and 10,123.28 is: 13,970.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,506.88 : 25,539.52 = 10,123.28 : x
  2. Step 2: Convert to fraction form
    18,506.88/25,539.52 = 10,123.28/x
  3. Step 3: Cross multiply
    18,506.88x = 25,539.52 × 10,123.28
  4. Step 4: Simplify right side
    18,506.88x = 258,543,712.03
  5. Step 5: Solve for x
    x = 258,543,712.03/18,506.88
  6. Step 6: Final answer
    x = 13,970.14

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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.