Home / 14,905.84-20,577.76-11,721.12

Finding the Fourth Proportional to 14,905.84, 20,577.76 and 11,721.12

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Solution

The fourth proportional to 14,905.84, 20,577.76 and 11,721.12 is: 16,181.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,905.84 : 20,577.76 = 11,721.12 : x
  2. Step 2: Convert to fraction form
    14,905.84/20,577.76 = 11,721.12/x
  3. Step 3: Cross multiply
    14,905.84x = 20,577.76 × 11,721.12
  4. Step 4: Simplify right side
    14,905.84x = 241,194,394.29
  5. Step 5: Solve for x
    x = 241,194,394.29/14,905.84
  6. Step 6: Final answer
    x = 16,181.20

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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.