Home / 13,905.84-19,181.22-9,126.10

Finding the Fourth Proportional to 13,905.84, 19,181.22 and 9,126.10

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Solution

The fourth proportional to 13,905.84, 19,181.22 and 9,126.10 is: 12,588.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.84 : 19,181.22 = 9,126.10 : x
  2. Step 2: Convert to fraction form
    13,905.84/19,181.22 = 9,126.10/x
  3. Step 3: Cross multiply
    13,905.84x = 19,181.22 × 9,126.10
  4. Step 4: Simplify right side
    13,905.84x = 175,049,731.84
  5. Step 5: Solve for x
    x = 175,049,731.84/13,905.84
  6. Step 6: Final answer
    x = 12,588.22

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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.