Home / 15,814.85-21,823.90-8,741.39

Finding the Fourth Proportional to 15,814.85, 21,823.90 and 8,741.39

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Solution

The fourth proportional to 15,814.85, 21,823.90 and 8,741.39 is: 12,062.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,814.85 : 21,823.90 = 8,741.39 : x
  2. Step 2: Convert to fraction form
    15,814.85/21,823.90 = 8,741.39/x
  3. Step 3: Cross multiply
    15,814.85x = 21,823.90 × 8,741.39
  4. Step 4: Simplify right side
    15,814.85x = 190,771,090.25
  5. Step 5: Solve for x
    x = 190,771,090.25/15,814.85
  6. Step 6: Final answer
    x = 12,062.79

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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.