Home / 13,022.94-17,966.10-8,240.57

Finding the Fourth Proportional to 13,022.94, 17,966.10 and 8,240.57

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Solution

The fourth proportional to 13,022.94, 17,966.10 and 8,240.57 is: 11,368.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,022.94 : 17,966.10 = 8,240.57 : x
  2. Step 2: Convert to fraction form
    13,022.94/17,966.10 = 8,240.57/x
  3. Step 3: Cross multiply
    13,022.94x = 17,966.10 × 8,240.57
  4. Step 4: Simplify right side
    13,022.94x = 148,050,913.12
  5. Step 5: Solve for x
    x = 148,050,913.12/13,022.94
  6. Step 6: Final answer
    x = 11,368.47

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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.