Home / 13,710.22-18,920.23-8,045.06

Finding the Fourth Proportional to 13,710.22, 18,920.23 and 8,045.06

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Solution

The fourth proportional to 13,710.22, 18,920.23 and 8,045.06 is: 11,102.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,710.22 : 18,920.23 = 8,045.06 : x
  2. Step 2: Convert to fraction form
    13,710.22/18,920.23 = 8,045.06/x
  3. Step 3: Cross multiply
    13,710.22x = 18,920.23 × 8,045.06
  4. Step 4: Simplify right side
    13,710.22x = 152,214,385.56
  5. Step 5: Solve for x
    x = 152,214,385.56/13,710.22
  6. Step 6: Final answer
    x = 11,102.26

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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.