Home / 14,878.28-20,529.96-8,908.76

Finding the Fourth Proportional to 14,878.28, 20,529.96 and 8,908.76

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Solution

The fourth proportional to 14,878.28, 20,529.96 and 8,908.76 is: 12,292.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,878.28 : 20,529.96 = 8,908.76 : x
  2. Step 2: Convert to fraction form
    14,878.28/20,529.96 = 8,908.76/x
  3. Step 3: Cross multiply
    14,878.28x = 20,529.96 × 8,908.76
  4. Step 4: Simplify right side
    14,878.28x = 182,896,486.45
  5. Step 5: Solve for x
    x = 182,896,486.45/14,878.28
  6. Step 6: Final answer
    x = 12,292.85

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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.