Home / 13,602.52-18,771.51-7,634.20

Finding the Fourth Proportional to 13,602.52, 18,771.51 and 7,634.20

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Solution

The fourth proportional to 13,602.52, 18,771.51 and 7,634.20 is: 10,535.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,602.52 : 18,771.51 = 7,634.20 : x
  2. Step 2: Convert to fraction form
    13,602.52/18,771.51 = 7,634.20/x
  3. Step 3: Cross multiply
    13,602.52x = 18,771.51 × 7,634.20
  4. Step 4: Simplify right side
    13,602.52x = 143,305,461.64
  5. Step 5: Solve for x
    x = 143,305,461.64/13,602.52
  6. Step 6: Final answer
    x = 10,535.21

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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.