Home / 15,309.27-21,126.60-8,594.72

Finding the Fourth Proportional to 15,309.27, 21,126.60 and 8,594.72

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Solution

The fourth proportional to 15,309.27, 21,126.60 and 8,594.72 is: 11,860.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,309.27 : 21,126.60 = 8,594.72 : x
  2. Step 2: Convert to fraction form
    15,309.27/21,126.60 = 8,594.72/x
  3. Step 3: Cross multiply
    15,309.27x = 21,126.60 × 8,594.72
  4. Step 4: Simplify right side
    15,309.27x = 181,577,211.55
  5. Step 5: Solve for x
    x = 181,577,211.55/15,309.27
  6. Step 6: Final answer
    x = 11,860.61

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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.