Home / 15,160.14-20,917.71-9,192.06

Finding the Fourth Proportional to 15,160.14, 20,917.71 and 9,192.06

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Solution

The fourth proportional to 15,160.14, 20,917.71 and 9,192.06 is: 12,683.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,160.14 : 20,917.71 = 9,192.06 : x
  2. Step 2: Convert to fraction form
    15,160.14/20,917.71 = 9,192.06/x
  3. Step 3: Cross multiply
    15,160.14x = 20,917.71 × 9,192.06
  4. Step 4: Simplify right side
    15,160.14x = 192,276,845.38
  5. Step 5: Solve for x
    x = 192,276,845.38/15,160.14
  6. Step 6: Final answer
    x = 12,683.05

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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.