Home / 18,315.18-25,275.50-10,357.25

Finding the Fourth Proportional to 18,315.18, 25,275.50 and 10,357.25

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Solution

The fourth proportional to 18,315.18, 25,275.50 and 10,357.25 is: 14,293.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.18 : 25,275.50 = 10,357.25 : x
  2. Step 2: Convert to fraction form
    18,315.18/25,275.50 = 10,357.25/x
  3. Step 3: Cross multiply
    18,315.18x = 25,275.50 × 10,357.25
  4. Step 4: Simplify right side
    18,315.18x = 261,784,533.05
  5. Step 5: Solve for x
    x = 261,784,533.05/18,315.18
  6. Step 6: Final answer
    x = 14,293.31

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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.