Home / 18,218.12-25,140.76-10,261.16

Finding the Fourth Proportional to 18,218.12, 25,140.76 and 10,261.16

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Solution

The fourth proportional to 18,218.12, 25,140.76 and 10,261.16 is: 14,160.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.12 : 25,140.76 = 10,261.16 : x
  2. Step 2: Convert to fraction form
    18,218.12/25,140.76 = 10,261.16/x
  3. Step 3: Cross multiply
    18,218.12x = 25,140.76 × 10,261.16
  4. Step 4: Simplify right side
    18,218.12x = 257,973,360.88
  5. Step 5: Solve for x
    x = 257,973,360.88/18,218.12
  6. Step 6: Final answer
    x = 14,160.26

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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.