Home / 14,865.39-20,513.57-8,900.35

Finding the Fourth Proportional to 14,865.39, 20,513.57 and 8,900.35

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Solution

The fourth proportional to 14,865.39, 20,513.57 and 8,900.35 is: 12,282.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,865.39 : 20,513.57 = 8,900.35 : x
  2. Step 2: Convert to fraction form
    14,865.39/20,513.57 = 8,900.35/x
  3. Step 3: Cross multiply
    14,865.39x = 20,513.57 × 8,900.35
  4. Step 4: Simplify right side
    14,865.39x = 182,577,923.72
  5. Step 5: Solve for x
    x = 182,577,923.72/14,865.39
  6. Step 6: Final answer
    x = 12,282.08

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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.