Home / 15,629.38-21,567.77-8,914.76

Finding the Fourth Proportional to 15,629.38, 21,567.77 and 8,914.76

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Solution

The fourth proportional to 15,629.38, 21,567.77 and 8,914.76 is: 12,301.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,629.38 : 21,567.77 = 8,914.76 : x
  2. Step 2: Convert to fraction form
    15,629.38/21,567.77 = 8,914.76/x
  3. Step 3: Cross multiply
    15,629.38x = 21,567.77 × 8,914.76
  4. Step 4: Simplify right side
    15,629.38x = 192,271,455.18
  5. Step 5: Solve for x
    x = 192,271,455.18/15,629.38
  6. Step 6: Final answer
    x = 12,301.92

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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.