Home / 15,627.63-21,567.62-8,555.12

Finding the Fourth Proportional to 15,627.63, 21,567.62 and 8,555.12

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Solution

The fourth proportional to 15,627.63, 21,567.62 and 8,555.12 is: 11,806.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,627.63 : 21,567.62 = 8,555.12 : x
  2. Step 2: Convert to fraction form
    15,627.63/21,567.62 = 8,555.12/x
  3. Step 3: Cross multiply
    15,627.63x = 21,567.62 × 8,555.12
  4. Step 4: Simplify right side
    15,627.63x = 184,513,523.52
  5. Step 5: Solve for x
    x = 184,513,523.52/15,627.63
  6. Step 6: Final answer
    x = 11,806.88

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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.