Home / 15,667.90-21,622.16-8,594.78

Finding the Fourth Proportional to 15,667.90, 21,622.16 and 8,594.78

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Solution

The fourth proportional to 15,667.90, 21,622.16 and 8,594.78 is: 11,861.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,667.90 : 21,622.16 = 8,594.78 : x
  2. Step 2: Convert to fraction form
    15,667.90/21,622.16 = 8,594.78/x
  3. Step 3: Cross multiply
    15,667.90x = 21,622.16 × 8,594.78
  4. Step 4: Simplify right side
    15,667.90x = 185,837,708.32
  5. Step 5: Solve for x
    x = 185,837,708.32/15,667.90
  6. Step 6: Final answer
    x = 11,861.05

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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.