Home / 21,209.04-29,266.77-12,257.12

Finding the Fourth Proportional to 21,209.04, 29,266.77 and 12,257.12

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Solution

The fourth proportional to 21,209.04, 29,266.77 and 12,257.12 is: 16,913.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,209.04 : 29,266.77 = 12,257.12 : x
  2. Step 2: Convert to fraction form
    21,209.04/29,266.77 = 12,257.12/x
  3. Step 3: Cross multiply
    21,209.04x = 29,266.77 × 12,257.12
  4. Step 4: Simplify right side
    21,209.04x = 358,726,362.09
  5. Step 5: Solve for x
    x = 358,726,362.09/21,209.04
  6. Step 6: Final answer
    x = 16,913.84

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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.