Home / 14,756.79-20,364.64-8,469.17

Finding the Fourth Proportional to 14,756.79, 20,364.64 and 8,469.17

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Solution

The fourth proportional to 14,756.79, 20,364.64 and 8,469.17 is: 11,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,756.79 : 20,364.64 = 8,469.17 : x
  2. Step 2: Convert to fraction form
    14,756.79/20,364.64 = 8,469.17/x
  3. Step 3: Cross multiply
    14,756.79x = 20,364.64 × 8,469.17
  4. Step 4: Simplify right side
    14,756.79x = 172,471,475.15
  5. Step 5: Solve for x
    x = 172,471,475.15/14,756.79
  6. Step 6: Final answer
    x = 11,687.60

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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.