Home / 15,432.39-21,276.81-12,596.85

Finding the Fourth Proportional to 15,432.39, 21,276.81 and 12,596.85

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Solution

The fourth proportional to 15,432.39, 21,276.81 and 12,596.85 is: 17,367.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,432.39 : 21,276.81 = 12,596.85 : x
  2. Step 2: Convert to fraction form
    15,432.39/21,276.81 = 12,596.85/x
  3. Step 3: Cross multiply
    15,432.39x = 21,276.81 × 12,596.85
  4. Step 4: Simplify right side
    15,432.39x = 268,020,784.05
  5. Step 5: Solve for x
    x = 268,020,784.05/15,432.39
  6. Step 6: Final answer
    x = 17,367.42

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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.