Home / 13,677.30-18,875.52-7,628.22

Finding the Fourth Proportional to 13,677.30, 18,875.52 and 7,628.22

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Solution

The fourth proportional to 13,677.30, 18,875.52 and 7,628.22 is: 10,527.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.30 : 18,875.52 = 7,628.22 : x
  2. Step 2: Convert to fraction form
    13,677.30/18,875.52 = 7,628.22/x
  3. Step 3: Cross multiply
    13,677.30x = 18,875.52 × 7,628.22
  4. Step 4: Simplify right side
    13,677.30x = 143,986,619.17
  5. Step 5: Solve for x
    x = 143,986,619.17/13,677.30
  6. Step 6: Final answer
    x = 10,527.42

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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.