Home / 13,349.67-18,420.93-7,380.52

Finding the Fourth Proportional to 13,349.67, 18,420.93 and 7,380.52

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Solution

The fourth proportional to 13,349.67, 18,420.93 and 7,380.52 is: 10,184.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.67 : 18,420.93 = 7,380.52 : x
  2. Step 2: Convert to fraction form
    13,349.67/18,420.93 = 7,380.52/x
  3. Step 3: Cross multiply
    13,349.67x = 18,420.93 × 7,380.52
  4. Step 4: Simplify right side
    13,349.67x = 135,956,042.28
  5. Step 5: Solve for x
    x = 135,956,042.28/13,349.67
  6. Step 6: Final answer
    x = 10,184.22

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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.