Home / 18,315.31-25,273.43-10,357.51

Finding the Fourth Proportional to 18,315.31, 25,273.43 and 10,357.51

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Solution

The fourth proportional to 18,315.31, 25,273.43 and 10,357.51 is: 14,292.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.31 : 25,273.43 = 10,357.51 : x
  2. Step 2: Convert to fraction form
    18,315.31/25,273.43 = 10,357.51/x
  3. Step 3: Cross multiply
    18,315.31x = 25,273.43 × 10,357.51
  4. Step 4: Simplify right side
    18,315.31x = 261,769,752.17
  5. Step 5: Solve for x
    x = 261,769,752.17/18,315.31
  6. Step 6: Final answer
    x = 14,292.40

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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.