Home / 15,774.27-21,768.10-8,700.54

Finding the Fourth Proportional to 15,774.27, 21,768.10 and 8,700.54

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Solution

The fourth proportional to 15,774.27, 21,768.10 and 8,700.54 is: 12,006.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,774.27 : 21,768.10 = 8,700.54 : x
  2. Step 2: Convert to fraction form
    15,774.27/21,768.10 = 8,700.54/x
  3. Step 3: Cross multiply
    15,774.27x = 21,768.10 × 8,700.54
  4. Step 4: Simplify right side
    15,774.27x = 189,394,224.77
  5. Step 5: Solve for x
    x = 189,394,224.77/15,774.27
  6. Step 6: Final answer
    x = 12,006.53

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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.