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Finding the Fourth Proportional to 11,434.88, 15,782.58 and 8,753.24

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Solution

The fourth proportional to 11,434.88, 15,782.58 and 8,753.24 is: 12,081.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,434.88 : 15,782.58 = 8,753.24 : x
  2. Step 2: Convert to fraction form
    11,434.88/15,782.58 = 8,753.24/x
  3. Step 3: Cross multiply
    11,434.88x = 15,782.58 × 8,753.24
  4. Step 4: Simplify right side
    11,434.88x = 138,148,710.56
  5. Step 5: Solve for x
    x = 138,148,710.56/11,434.88
  6. Step 6: Final answer
    x = 12,081.34

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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.