Home / 21,205.36-29,263.58-11,774.53

Finding the Fourth Proportional to 21,205.36, 29,263.58 and 11,774.53

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Solution

The fourth proportional to 21,205.36, 29,263.58 and 11,774.53 is: 16,248.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,205.36 : 29,263.58 = 11,774.53 : x
  2. Step 2: Convert to fraction form
    21,205.36/29,263.58 = 11,774.53/x
  3. Step 3: Cross multiply
    21,205.36x = 29,263.58 × 11,774.53
  4. Step 4: Simplify right side
    21,205.36x = 344,564,900.62
  5. Step 5: Solve for x
    x = 344,564,900.62/21,205.36
  6. Step 6: Final answer
    x = 16,248.95

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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.