Home / 13,171.46-19,663.28-12,710.12

Finding the Fourth Proportional to 13,171.46, 19,663.28 and 12,710.12

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Solution

The fourth proportional to 13,171.46, 19,663.28 and 12,710.12 is: 18,974.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,171.46 : 19,663.28 = 12,710.12 : x
  2. Step 2: Convert to fraction form
    13,171.46/19,663.28 = 12,710.12/x
  3. Step 3: Cross multiply
    13,171.46x = 19,663.28 × 12,710.12
  4. Step 4: Simplify right side
    13,171.46x = 249,922,648.39
  5. Step 5: Solve for x
    x = 249,922,648.39/13,171.46
  6. Step 6: Final answer
    x = 18,974.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.