Home / 13,905.48-19,172.34-9,182.28

Finding the Fourth Proportional to 13,905.48, 19,172.34 and 9,182.28

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Solution

The fourth proportional to 13,905.48, 19,172.34 and 9,182.28 is: 12,660.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.48 : 19,172.34 = 9,182.28 : x
  2. Step 2: Convert to fraction form
    13,905.48/19,172.34 = 9,182.28/x
  3. Step 3: Cross multiply
    13,905.48x = 19,172.34 × 9,182.28
  4. Step 4: Simplify right side
    13,905.48x = 176,045,794.14
  5. Step 5: Solve for x
    x = 176,045,794.14/13,905.48
  6. Step 6: Final answer
    x = 12,660.17

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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.