Home / 12,898.71-19,322.14-6,729.75

Finding the Fourth Proportional to 12,898.71, 19,322.14 and 6,729.75

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Solution

The fourth proportional to 12,898.71, 19,322.14 and 6,729.75 is: 10,081.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,898.71 : 19,322.14 = 6,729.75 : x
  2. Step 2: Convert to fraction form
    12,898.71/19,322.14 = 6,729.75/x
  3. Step 3: Cross multiply
    12,898.71x = 19,322.14 × 6,729.75
  4. Step 4: Simplify right side
    12,898.71x = 130,033,171.67
  5. Step 5: Solve for x
    x = 130,033,171.67/12,898.71
  6. Step 6: Final answer
    x = 10,081.10

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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.