Home / 13,004.07-19,497.88-7,164.78

Finding the Fourth Proportional to 13,004.07, 19,497.88 and 7,164.78

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Solution

The fourth proportional to 13,004.07, 19,497.88 and 7,164.78 is: 10,742.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,004.07 : 19,497.88 = 7,164.78 : x
  2. Step 2: Convert to fraction form
    13,004.07/19,497.88 = 7,164.78/x
  3. Step 3: Cross multiply
    13,004.07x = 19,497.88 × 7,164.78
  4. Step 4: Simplify right side
    13,004.07x = 139,698,020.67
  5. Step 5: Solve for x
    x = 139,698,020.67/13,004.07
  6. Step 6: Final answer
    x = 10,742.64

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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.