Home / 21,346.34-29,459.59-11,788.06

Finding the Fourth Proportional to 21,346.34, 29,459.59 and 11,788.06

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Solution

The fourth proportional to 21,346.34, 29,459.59 and 11,788.06 is: 16,268.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,346.34 : 29,459.59 = 11,788.06 : x
  2. Step 2: Convert to fraction form
    21,346.34/29,459.59 = 11,788.06/x
  3. Step 3: Cross multiply
    21,346.34x = 29,459.59 × 11,788.06
  4. Step 4: Simplify right side
    21,346.34x = 347,271,414.50
  5. Step 5: Solve for x
    x = 347,271,414.50/21,346.34
  6. Step 6: Final answer
    x = 16,268.43

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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.