Home / 18,268.62-25,215.57-10,315.50

Finding the Fourth Proportional to 18,268.62, 25,215.57 and 10,315.50

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Solution

The fourth proportional to 18,268.62, 25,215.57 and 10,315.50 is: 14,238.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,268.62 : 25,215.57 = 10,315.50 : x
  2. Step 2: Convert to fraction form
    18,268.62/25,215.57 = 10,315.50/x
  3. Step 3: Cross multiply
    18,268.62x = 25,215.57 × 10,315.50
  4. Step 4: Simplify right side
    18,268.62x = 260,111,212.34
  5. Step 5: Solve for x
    x = 260,111,212.34/18,268.62
  6. Step 6: Final answer
    x = 14,238.14

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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.