Home / 13,216.68-19,827.72-5,425.56

Finding the Fourth Proportional to 13,216.68, 19,827.72 and 5,425.56

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Solution

The fourth proportional to 13,216.68, 19,827.72 and 5,425.56 is: 8,139.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.68 : 19,827.72 = 5,425.56 : x
  2. Step 2: Convert to fraction form
    13,216.68/19,827.72 = 5,425.56/x
  3. Step 3: Cross multiply
    13,216.68x = 19,827.72 × 5,425.56
  4. Step 4: Simplify right side
    13,216.68x = 107,576,484.52
  5. Step 5: Solve for x
    x = 107,576,484.52/13,216.68
  6. Step 6: Final answer
    x = 8,139.45

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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.