Home / 18,237.80-25,166.40-10,279.28

Finding the Fourth Proportional to 18,237.80, 25,166.40 and 10,279.28

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Solution

The fourth proportional to 18,237.80, 25,166.40 and 10,279.28 is: 14,184.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,237.80 : 25,166.40 = 10,279.28 : x
  2. Step 2: Convert to fraction form
    18,237.80/25,166.40 = 10,279.28/x
  3. Step 3: Cross multiply
    18,237.80x = 25,166.40 × 10,279.28
  4. Step 4: Simplify right side
    18,237.80x = 258,692,472.19
  5. Step 5: Solve for x
    x = 258,692,472.19/18,237.80
  6. Step 6: Final answer
    x = 14,184.41

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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.