Home / 13,005.21-17,947.20-7,036.86

Finding the Fourth Proportional to 13,005.21, 17,947.20 and 7,036.86

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Solution

The fourth proportional to 13,005.21, 17,947.20 and 7,036.86 is: 9,710.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,005.21 : 17,947.20 = 7,036.86 : x
  2. Step 2: Convert to fraction form
    13,005.21/17,947.20 = 7,036.86/x
  3. Step 3: Cross multiply
    13,005.21x = 17,947.20 × 7,036.86
  4. Step 4: Simplify right side
    13,005.21x = 126,291,942.87
  5. Step 5: Solve for x
    x = 126,291,942.87/13,005.21
  6. Step 6: Final answer
    x = 9,710.87

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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.