Home / 15,818.41-23,720.73-8,421.22

Finding the Fourth Proportional to 15,818.41, 23,720.73 and 8,421.22

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Solution

The fourth proportional to 15,818.41, 23,720.73 and 8,421.22 is: 12,628.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,818.41 : 23,720.73 = 8,421.22 : x
  2. Step 2: Convert to fraction form
    15,818.41/23,720.73 = 8,421.22/x
  3. Step 3: Cross multiply
    15,818.41x = 23,720.73 × 8,421.22
  4. Step 4: Simplify right side
    15,818.41x = 199,757,485.89
  5. Step 5: Solve for x
    x = 199,757,485.89/15,818.41
  6. Step 6: Final answer
    x = 12,628.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.