Home / 14,868.55-20,518.86-8,153.76

Finding the Fourth Proportional to 14,868.55, 20,518.86 and 8,153.76

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Solution

The fourth proportional to 14,868.55, 20,518.86 and 8,153.76 is: 11,252.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,868.55 : 20,518.86 = 8,153.76 : x
  2. Step 2: Convert to fraction form
    14,868.55/20,518.86 = 8,153.76/x
  3. Step 3: Cross multiply
    14,868.55x = 20,518.86 × 8,153.76
  4. Step 4: Simplify right side
    14,868.55x = 167,305,859.91
  5. Step 5: Solve for x
    x = 167,305,859.91/14,868.55
  6. Step 6: Final answer
    x = 11,252.33

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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.