Home / 13,905.77-19,190-7,532.34

Finding the Fourth Proportional to 13,905.77, 19,190 and 7,532.34

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Solution

The fourth proportional to 13,905.77, 19,190 and 7,532.34 is: 10,394.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.77 : 19,190 = 7,532.34 : x
  2. Step 2: Convert to fraction form
    13,905.77/19,190 = 7,532.34/x
  3. Step 3: Cross multiply
    13,905.77x = 19,190 × 7,532.34
  4. Step 4: Simplify right side
    13,905.77x = 144,545,604.60
  5. Step 5: Solve for x
    x = 144,545,604.60/13,905.77
  6. Step 6: Final answer
    x = 10,394.65

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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.