Home / 12,475.38-17,216.45-6,810.47

Finding the Fourth Proportional to 12,475.38, 17,216.45 and 6,810.47

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Solution

The fourth proportional to 12,475.38, 17,216.45 and 6,810.47 is: 9,398.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.38 : 17,216.45 = 6,810.47 : x
  2. Step 2: Convert to fraction form
    12,475.38/17,216.45 = 6,810.47/x
  3. Step 3: Cross multiply
    12,475.38x = 17,216.45 × 6,810.47
  4. Step 4: Simplify right side
    12,475.38x = 117,252,115.46
  5. Step 5: Solve for x
    x = 117,252,115.46/12,475.38
  6. Step 6: Final answer
    x = 9,398.68

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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.