Home / 18,267.36-25,208.96-12,681.60

Finding the Fourth Proportional to 18,267.36, 25,208.96 and 12,681.60

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Solution

The fourth proportional to 18,267.36, 25,208.96 and 12,681.60 is: 17,500.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,267.36 : 25,208.96 = 12,681.60 : x
  2. Step 2: Convert to fraction form
    18,267.36/25,208.96 = 12,681.60/x
  3. Step 3: Cross multiply
    18,267.36x = 25,208.96 × 12,681.60
  4. Step 4: Simplify right side
    18,267.36x = 319,689,947.14
  5. Step 5: Solve for x
    x = 319,689,947.14/18,267.36
  6. Step 6: Final answer
    x = 17,500.61

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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.