Home / 15,247.32-21,045.36-8,963.88

Finding the Fourth Proportional to 15,247.32, 21,045.36 and 8,963.88

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Solution

The fourth proportional to 15,247.32, 21,045.36 and 8,963.88 is: 12,372.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,247.32 : 21,045.36 = 8,963.88 : x
  2. Step 2: Convert to fraction form
    15,247.32/21,045.36 = 8,963.88/x
  3. Step 3: Cross multiply
    15,247.32x = 21,045.36 × 8,963.88
  4. Step 4: Simplify right side
    15,247.32x = 188,648,081.60
  5. Step 5: Solve for x
    x = 188,648,081.60/15,247.32
  6. Step 6: Final answer
    x = 12,372.54

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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.