Home / 14,724.72-20,311.56-9,126

Finding the Fourth Proportional to 14,724.72, 20,311.56 and 9,126

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Solution

The fourth proportional to 14,724.72, 20,311.56 and 9,126 is: 12,588.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,724.72 : 20,311.56 = 9,126 : x
  2. Step 2: Convert to fraction form
    14,724.72/20,311.56 = 9,126/x
  3. Step 3: Cross multiply
    14,724.72x = 20,311.56 × 9,126
  4. Step 4: Simplify right side
    14,724.72x = 185,363,296.56
  5. Step 5: Solve for x
    x = 185,363,296.56/14,724.72
  6. Step 6: Final answer
    x = 12,588.58

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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.