Home / 12,576.24-17,355.54-7,541.28

Finding the Fourth Proportional to 12,576.24, 17,355.54 and 7,541.28

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Solution

The fourth proportional to 12,576.24, 17,355.54 and 7,541.28 is: 10,407.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.24 : 17,355.54 = 7,541.28 : x
  2. Step 2: Convert to fraction form
    12,576.24/17,355.54 = 7,541.28/x
  3. Step 3: Cross multiply
    12,576.24x = 17,355.54 × 7,541.28
  4. Step 4: Simplify right side
    12,576.24x = 130,882,986.69
  5. Step 5: Solve for x
    x = 130,882,986.69/12,576.24
  6. Step 6: Final answer
    x = 10,407.16

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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.