Home / 13,217.78-19,818.38-6,973.86

Finding the Fourth Proportional to 13,217.78, 19,818.38 and 6,973.86

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Solution

The fourth proportional to 13,217.78, 19,818.38 and 6,973.86 is: 10,456.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.78 : 19,818.38 = 6,973.86 : x
  2. Step 2: Convert to fraction form
    13,217.78/19,818.38 = 6,973.86/x
  3. Step 3: Cross multiply
    13,217.78x = 19,818.38 × 6,973.86
  4. Step 4: Simplify right side
    13,217.78x = 138,210,607.55
  5. Step 5: Solve for x
    x = 138,210,607.55/13,217.78
  6. Step 6: Final answer
    x = 10,456.42

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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.