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Finding the Fourth Proportional to 12,854.79, 19,282.73 and 6,286.50

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Solution

The fourth proportional to 12,854.79, 19,282.73 and 6,286.50 is: 9,430.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,854.79 : 19,282.73 = 6,286.50 : x
  2. Step 2: Convert to fraction form
    12,854.79/19,282.73 = 6,286.50/x
  3. Step 3: Cross multiply
    12,854.79x = 19,282.73 × 6,286.50
  4. Step 4: Simplify right side
    12,854.79x = 121,220,850.71
  5. Step 5: Solve for x
    x = 121,220,850.71/12,854.79
  6. Step 6: Final answer
    x = 9,430.01

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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.