Home / 12,488.48-17,234.13-6,823.28

Finding the Fourth Proportional to 12,488.48, 17,234.13 and 6,823.28

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Solution

The fourth proportional to 12,488.48, 17,234.13 and 6,823.28 is: 9,416.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488.48 : 17,234.13 = 6,823.28 : x
  2. Step 2: Convert to fraction form
    12,488.48/17,234.13 = 6,823.28/x
  3. Step 3: Cross multiply
    12,488.48x = 17,234.13 × 6,823.28
  4. Step 4: Simplify right side
    12,488.48x = 117,593,294.55
  5. Step 5: Solve for x
    x = 117,593,294.55/12,488.48
  6. Step 6: Final answer
    x = 9,416.14

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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.