Home / 12,130.31-16,730.48-10,635.73

Finding the Fourth Proportional to 12,130.31, 16,730.48 and 10,635.73

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Solution

The fourth proportional to 12,130.31, 16,730.48 and 10,635.73 is: 14,669.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130.31 : 16,730.48 = 10,635.73 : x
  2. Step 2: Convert to fraction form
    12,130.31/16,730.48 = 10,635.73/x
  3. Step 3: Cross multiply
    12,130.31x = 16,730.48 × 10,635.73
  4. Step 4: Simplify right side
    12,130.31x = 177,940,852.81
  5. Step 5: Solve for x
    x = 177,940,852.81/12,130.31
  6. Step 6: Final answer
    x = 14,669.11

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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.