Home / 18,618.66-27,909.36-10,302.39

Finding the Fourth Proportional to 18,618.66, 27,909.36 and 10,302.39

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Solution

The fourth proportional to 18,618.66, 27,909.36 and 10,302.39 is: 15,443.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618.66 : 27,909.36 = 10,302.39 : x
  2. Step 2: Convert to fraction form
    18,618.66/27,909.36 = 10,302.39/x
  3. Step 3: Cross multiply
    18,618.66x = 27,909.36 × 10,302.39
  4. Step 4: Simplify right side
    18,618.66x = 287,533,111.37
  5. Step 5: Solve for x
    x = 287,533,111.37/18,618.66
  6. Step 6: Final answer
    x = 15,443.28

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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.