Home / 18,270.18-25,212.96-9,886.68

Finding the Fourth Proportional to 18,270.18, 25,212.96 and 9,886.68

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Solution

The fourth proportional to 18,270.18, 25,212.96 and 9,886.68 is: 13,643.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,270.18 : 25,212.96 = 9,886.68 : x
  2. Step 2: Convert to fraction form
    18,270.18/25,212.96 = 9,886.68/x
  3. Step 3: Cross multiply
    18,270.18x = 25,212.96 × 9,886.68
  4. Step 4: Simplify right side
    18,270.18x = 249,272,467.37
  5. Step 5: Solve for x
    x = 249,272,467.37/18,270.18
  6. Step 6: Final answer
    x = 13,643.68

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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.