Home / 12,160.13-16,775.71-7,124.56

Finding the Fourth Proportional to 12,160.13, 16,775.71 and 7,124.56

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Solution

The fourth proportional to 12,160.13, 16,775.71 and 7,124.56 is: 9,828.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.13 : 16,775.71 = 7,124.56 : x
  2. Step 2: Convert to fraction form
    12,160.13/16,775.71 = 7,124.56/x
  3. Step 3: Cross multiply
    12,160.13x = 16,775.71 × 7,124.56
  4. Step 4: Simplify right side
    12,160.13x = 119,519,492.69
  5. Step 5: Solve for x
    x = 119,519,492.69/12,160.13
  6. Step 6: Final answer
    x = 9,828.80

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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.