Home / 15,195.38-22,683.08-13,128.66

Finding the Fourth Proportional to 15,195.38, 22,683.08 and 13,128.66

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Solution

The fourth proportional to 15,195.38, 22,683.08 and 13,128.66 is: 19,597.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,195.38 : 22,683.08 = 13,128.66 : x
  2. Step 2: Convert to fraction form
    15,195.38/22,683.08 = 13,128.66/x
  3. Step 3: Cross multiply
    15,195.38x = 22,683.08 × 13,128.66
  4. Step 4: Simplify right side
    15,195.38x = 297,798,477.89
  5. Step 5: Solve for x
    x = 297,798,477.89/15,195.38
  6. Step 6: Final answer
    x = 19,597.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.