Home / 12,355.29-17,043.88-7,576.35

Finding the Fourth Proportional to 12,355.29, 17,043.88 and 7,576.35

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Solution

The fourth proportional to 12,355.29, 17,043.88 and 7,576.35 is: 10,451.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355.29 : 17,043.88 = 7,576.35 : x
  2. Step 2: Convert to fraction form
    12,355.29/17,043.88 = 7,576.35/x
  3. Step 3: Cross multiply
    12,355.29x = 17,043.88 × 7,576.35
  4. Step 4: Simplify right side
    12,355.29x = 129,130,396.17
  5. Step 5: Solve for x
    x = 129,130,396.17/12,355.29
  6. Step 6: Final answer
    x = 10,451.43

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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.