Home / 19,140.66-26,410.90-10,642.54

Finding the Fourth Proportional to 19,140.66, 26,410.90 and 10,642.54

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Solution

The fourth proportional to 19,140.66, 26,410.90 and 10,642.54 is: 14,684.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140.66 : 26,410.90 = 10,642.54 : x
  2. Step 2: Convert to fraction form
    19,140.66/26,410.90 = 10,642.54/x
  3. Step 3: Cross multiply
    19,140.66x = 26,410.90 × 10,642.54
  4. Step 4: Simplify right side
    19,140.66x = 281,079,059.69
  5. Step 5: Solve for x
    x = 281,079,059.69/19,140.66
  6. Step 6: Final answer
    x = 14,684.92

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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.