Home / 12,639.36-17,446.14-7,335.48

Finding the Fourth Proportional to 12,639.36, 17,446.14 and 7,335.48

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Solution

The fourth proportional to 12,639.36, 17,446.14 and 7,335.48 is: 10,125.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,639.36 : 17,446.14 = 7,335.48 : x
  2. Step 2: Convert to fraction form
    12,639.36/17,446.14 = 7,335.48/x
  3. Step 3: Cross multiply
    12,639.36x = 17,446.14 × 7,335.48
  4. Step 4: Simplify right side
    12,639.36x = 127,975,811.05
  5. Step 5: Solve for x
    x = 127,975,811.05/12,639.36
  6. Step 6: Final answer
    x = 10,125.18

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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.