Home / 13,611.36-20,434.32-11,572.32

Finding the Fourth Proportional to 13,611.36, 20,434.32 and 11,572.32

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Solution

The fourth proportional to 13,611.36, 20,434.32 and 11,572.32 is: 17,373.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.36 : 20,434.32 = 11,572.32 : x
  2. Step 2: Convert to fraction form
    13,611.36/20,434.32 = 11,572.32/x
  3. Step 3: Cross multiply
    13,611.36x = 20,434.32 × 11,572.32
  4. Step 4: Simplify right side
    13,611.36x = 236,472,490.02
  5. Step 5: Solve for x
    x = 236,472,490.02/13,611.36
  6. Step 6: Final answer
    x = 17,373.17

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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.