Home / 14,145.61-21,218.27-8,600.48

Finding the Fourth Proportional to 14,145.61, 21,218.27 and 8,600.48

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Solution

The fourth proportional to 14,145.61, 21,218.27 and 8,600.48 is: 12,900.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.61 : 21,218.27 = 8,600.48 : x
  2. Step 2: Convert to fraction form
    14,145.61/21,218.27 = 8,600.48/x
  3. Step 3: Cross multiply
    14,145.61x = 21,218.27 × 8,600.48
  4. Step 4: Simplify right side
    14,145.61x = 182,487,306.77
  5. Step 5: Solve for x
    x = 182,487,306.77/14,145.61
  6. Step 6: Final answer
    x = 12,900.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.