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Finding the Fourth Proportional to 15,594.81, 21,518.24 and 8,880.54

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Solution

The fourth proportional to 15,594.81, 21,518.24 and 8,880.54 is: 12,253.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,594.81 : 21,518.24 = 8,880.54 : x
  2. Step 2: Convert to fraction form
    15,594.81/21,518.24 = 8,880.54/x
  3. Step 3: Cross multiply
    15,594.81x = 21,518.24 × 8,880.54
  4. Step 4: Simplify right side
    15,594.81x = 191,093,546.65
  5. Step 5: Solve for x
    x = 191,093,546.65/15,594.81
  6. Step 6: Final answer
    x = 12,253.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.