Home / 12,129.17-16,738.25-6,823.97

Finding the Fourth Proportional to 12,129.17, 16,738.25 and 6,823.97

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Solution

The fourth proportional to 12,129.17, 16,738.25 and 6,823.97 is: 9,417.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129.17 : 16,738.25 = 6,823.97 : x
  2. Step 2: Convert to fraction form
    12,129.17/16,738.25 = 6,823.97/x
  3. Step 3: Cross multiply
    12,129.17x = 16,738.25 × 6,823.97
  4. Step 4: Simplify right side
    12,129.17x = 114,221,307.89
  5. Step 5: Solve for x
    x = 114,221,307.89/12,129.17
  6. Step 6: Final answer
    x = 9,417.08

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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.