Home / 13,602.28-18,769.80-7,633.48

Finding the Fourth Proportional to 13,602.28, 18,769.80 and 7,633.48

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Solution

The fourth proportional to 13,602.28, 18,769.80 and 7,633.48 is: 10,533.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,602.28 : 18,769.80 = 7,633.48 : x
  2. Step 2: Convert to fraction form
    13,602.28/18,769.80 = 7,633.48/x
  3. Step 3: Cross multiply
    13,602.28x = 18,769.80 × 7,633.48
  4. Step 4: Simplify right side
    13,602.28x = 143,278,892.90
  5. Step 5: Solve for x
    x = 143,278,892.90/13,602.28
  6. Step 6: Final answer
    x = 10,533.45

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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.