Home / 15,306.86-21,125.58-8,592.88

Finding the Fourth Proportional to 15,306.86, 21,125.58 and 8,592.88

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Solution

The fourth proportional to 15,306.86, 21,125.58 and 8,592.88 is: 11,859.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,306.86 : 21,125.58 = 8,592.88 : x
  2. Step 2: Convert to fraction form
    15,306.86/21,125.58 = 8,592.88/x
  3. Step 3: Cross multiply
    15,306.86x = 21,125.58 × 8,592.88
  4. Step 4: Simplify right side
    15,306.86x = 181,529,573.87
  5. Step 5: Solve for x
    x = 181,529,573.87/15,306.86
  6. Step 6: Final answer
    x = 11,859.36

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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.