Home / 15,364.32-21,204.88-8,992.80

Finding the Fourth Proportional to 15,364.32, 21,204.88 and 8,992.80

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Solution

The fourth proportional to 15,364.32, 21,204.88 and 8,992.80 is: 12,411.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,364.32 : 21,204.88 = 8,992.80 : x
  2. Step 2: Convert to fraction form
    15,364.32/21,204.88 = 8,992.80/x
  3. Step 3: Cross multiply
    15,364.32x = 21,204.88 × 8,992.80
  4. Step 4: Simplify right side
    15,364.32x = 190,691,244.86
  5. Step 5: Solve for x
    x = 190,691,244.86/15,364.32
  6. Step 6: Final answer
    x = 12,411.30

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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.