Home / 13,465.32-20,215.88-11,503.56

Finding the Fourth Proportional to 13,465.32, 20,215.88 and 11,503.56

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Solution

The fourth proportional to 13,465.32, 20,215.88 and 11,503.56 is: 17,270.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,465.32 : 20,215.88 = 11,503.56 : x
  2. Step 2: Convert to fraction form
    13,465.32/20,215.88 = 11,503.56/x
  3. Step 3: Cross multiply
    13,465.32x = 20,215.88 × 11,503.56
  4. Step 4: Simplify right side
    13,465.32x = 232,554,429.94
  5. Step 5: Solve for x
    x = 232,554,429.94/13,465.32
  6. Step 6: Final answer
    x = 17,270.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.