Home / 13,022.72-19,490.88-10,407.68

Finding the Fourth Proportional to 13,022.72, 19,490.88 and 10,407.68

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Solution

The fourth proportional to 13,022.72, 19,490.88 and 10,407.68 is: 15,576.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,022.72 : 19,490.88 = 10,407.68 : x
  2. Step 2: Convert to fraction form
    13,022.72/19,490.88 = 10,407.68/x
  3. Step 3: Cross multiply
    13,022.72x = 19,490.88 × 10,407.68
  4. Step 4: Simplify right side
    13,022.72x = 202,854,841.96
  5. Step 5: Solve for x
    x = 202,854,841.96/13,022.72
  6. Step 6: Final answer
    x = 15,576.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.