Home / 14,742.72-22,128.66-6,957

Finding the Fourth Proportional to 14,742.72, 22,128.66 and 6,957

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Solution

The fourth proportional to 14,742.72, 22,128.66 and 6,957 is: 10,442.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,742.72 : 22,128.66 = 6,957 : x
  2. Step 2: Convert to fraction form
    14,742.72/22,128.66 = 6,957/x
  3. Step 3: Cross multiply
    14,742.72x = 22,128.66 × 6,957
  4. Step 4: Simplify right side
    14,742.72x = 153,949,087.62
  5. Step 5: Solve for x
    x = 153,949,087.62/14,742.72
  6. Step 6: Final answer
    x = 10,442.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.