Home / 12,528.40-17,277.26-7,491.80

Finding the Fourth Proportional to 12,528.40, 17,277.26 and 7,491.80

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Solution

The fourth proportional to 12,528.40, 17,277.26 and 7,491.80 is: 10,331.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.40 : 17,277.26 = 7,491.80 : x
  2. Step 2: Convert to fraction form
    12,528.40/17,277.26 = 7,491.80/x
  3. Step 3: Cross multiply
    12,528.40x = 17,277.26 × 7,491.80
  4. Step 4: Simplify right side
    12,528.40x = 129,437,754.68
  5. Step 5: Solve for x
    x = 129,437,754.68/12,528.40
  6. Step 6: Final answer
    x = 10,331.55

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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.