Home / 13,354.77-18,427.97-7,385.63

Finding the Fourth Proportional to 13,354.77, 18,427.97 and 7,385.63

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Solution

The fourth proportional to 13,354.77, 18,427.97 and 7,385.63 is: 10,191.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,354.77 : 18,427.97 = 7,385.63 : x
  2. Step 2: Convert to fraction form
    13,354.77/18,427.97 = 7,385.63/x
  3. Step 3: Cross multiply
    13,354.77x = 18,427.97 × 7,385.63
  4. Step 4: Simplify right side
    13,354.77x = 136,102,039.00
  5. Step 5: Solve for x
    x = 136,102,039.00/13,354.77
  6. Step 6: Final answer
    x = 10,191.27

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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.