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Finding the Fourth Proportional to 15,286.40, 22,886.40 and 14,854.40

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Solution

The fourth proportional to 15,286.40, 22,886.40 and 14,854.40 is: 22,239.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,286.40 : 22,886.40 = 14,854.40 : x
  2. Step 2: Convert to fraction form
    15,286.40/22,886.40 = 14,854.40/x
  3. Step 3: Cross multiply
    15,286.40x = 22,886.40 × 14,854.40
  4. Step 4: Simplify right side
    15,286.40x = 339,963,740.16
  5. Step 5: Solve for x
    x = 339,963,740.16/15,286.40
  6. Step 6: Final answer
    x = 22,239.62

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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.