Home / 15,667.75-21,622.68-8,953.66

Finding the Fourth Proportional to 15,667.75, 21,622.68 and 8,953.66

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Solution

The fourth proportional to 15,667.75, 21,622.68 and 8,953.66 is: 12,356.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,667.75 : 21,622.68 = 8,953.66 : x
  2. Step 2: Convert to fraction form
    15,667.75/21,622.68 = 8,953.66/x
  3. Step 3: Cross multiply
    15,667.75x = 21,622.68 × 8,953.66
  4. Step 4: Simplify right side
    15,667.75x = 193,602,125.01
  5. Step 5: Solve for x
    x = 193,602,125.01/15,667.75
  6. Step 6: Final answer
    x = 12,356.73

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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.