Home / 12,628.50-17,424.48-7,322.32

Finding the Fourth Proportional to 12,628.50, 17,424.48 and 7,322.32

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Solution

The fourth proportional to 12,628.50, 17,424.48 and 7,322.32 is: 10,103.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.50 : 17,424.48 = 7,322.32 : x
  2. Step 2: Convert to fraction form
    12,628.50/17,424.48 = 7,322.32/x
  3. Step 3: Cross multiply
    12,628.50x = 17,424.48 × 7,322.32
  4. Step 4: Simplify right side
    12,628.50x = 127,587,618.39
  5. Step 5: Solve for x
    x = 127,587,618.39/12,628.50
  6. Step 6: Final answer
    x = 10,103.15

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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.