Home / 12,322.28-17,007.77-7,020.23

Finding the Fourth Proportional to 12,322.28, 17,007.77 and 7,020.23

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Solution

The fourth proportional to 12,322.28, 17,007.77 and 7,020.23 is: 9,689.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,322.28 : 17,007.77 = 7,020.23 : x
  2. Step 2: Convert to fraction form
    12,322.28/17,007.77 = 7,020.23/x
  3. Step 3: Cross multiply
    12,322.28x = 17,007.77 × 7,020.23
  4. Step 4: Simplify right side
    12,322.28x = 119,398,389.70
  5. Step 5: Solve for x
    x = 119,398,389.70/12,322.28
  6. Step 6: Final answer
    x = 9,689.63

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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.