Home / 12,139.74-16,752.83-6,762.06

Finding the Fourth Proportional to 12,139.74, 16,752.83 and 6,762.06

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Solution

The fourth proportional to 12,139.74, 16,752.83 and 6,762.06 is: 9,331.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,139.74 : 16,752.83 = 6,762.06 : x
  2. Step 2: Convert to fraction form
    12,139.74/16,752.83 = 6,762.06/x
  3. Step 3: Cross multiply
    12,139.74x = 16,752.83 × 6,762.06
  4. Step 4: Simplify right side
    12,139.74x = 113,283,607.82
  5. Step 5: Solve for x
    x = 113,283,607.82/12,139.74
  6. Step 6: Final answer
    x = 9,331.63

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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.