Home / 12,935.21-19,386.57-5,530.97

Finding the Fourth Proportional to 12,935.21, 19,386.57 and 5,530.97

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Solution

The fourth proportional to 12,935.21, 19,386.57 and 5,530.97 is: 8,289.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,935.21 : 19,386.57 = 5,530.97 : x
  2. Step 2: Convert to fraction form
    12,935.21/19,386.57 = 5,530.97/x
  3. Step 3: Cross multiply
    12,935.21x = 19,386.57 × 5,530.97
  4. Step 4: Simplify right side
    12,935.21x = 107,226,440.14
  5. Step 5: Solve for x
    x = 107,226,440.14/12,935.21
  6. Step 6: Final answer
    x = 8,289.50

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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.