Home / 14,931.08-20,604.45-8,216.70

Finding the Fourth Proportional to 14,931.08, 20,604.45 and 8,216.70

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Solution

The fourth proportional to 14,931.08, 20,604.45 and 8,216.70 is: 11,338.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,931.08 : 20,604.45 = 8,216.70 : x
  2. Step 2: Convert to fraction form
    14,931.08/20,604.45 = 8,216.70/x
  3. Step 3: Cross multiply
    14,931.08x = 20,604.45 × 8,216.70
  4. Step 4: Simplify right side
    14,931.08x = 169,300,543.23
  5. Step 5: Solve for x
    x = 169,300,543.23/14,931.08
  6. Step 6: Final answer
    x = 11,338.80

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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.