Home / 18,212.31-25,132.86-10,254.51

Finding the Fourth Proportional to 18,212.31, 25,132.86 and 10,254.51

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Solution

The fourth proportional to 18,212.31, 25,132.86 and 10,254.51 is: 14,151.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.31 : 25,132.86 = 10,254.51 : x
  2. Step 2: Convert to fraction form
    18,212.31/25,132.86 = 10,254.51/x
  3. Step 3: Cross multiply
    18,212.31x = 25,132.86 × 10,254.51
  4. Step 4: Simplify right side
    18,212.31x = 257,725,164.20
  5. Step 5: Solve for x
    x = 257,725,164.20/18,212.31
  6. Step 6: Final answer
    x = 14,151.15

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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.