Home / 12,530.40-17,291.52-7,224.48

Finding the Fourth Proportional to 12,530.40, 17,291.52 and 7,224.48

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Solution

The fourth proportional to 12,530.40, 17,291.52 and 7,224.48 is: 9,969.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530.40 : 17,291.52 = 7,224.48 : x
  2. Step 2: Convert to fraction form
    12,530.40/17,291.52 = 7,224.48/x
  3. Step 3: Cross multiply
    12,530.40x = 17,291.52 × 7,224.48
  4. Step 4: Simplify right side
    12,530.40x = 124,922,240.41
  5. Step 5: Solve for x
    x = 124,922,240.41/12,530.40
  6. Step 6: Final answer
    x = 9,969.53

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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.