Home / 13,217.22-18,238.08-7,552.34

Finding the Fourth Proportional to 13,217.22, 18,238.08 and 7,552.34

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Solution

The fourth proportional to 13,217.22, 18,238.08 and 7,552.34 is: 10,421.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.22 : 18,238.08 = 7,552.34 : x
  2. Step 2: Convert to fraction form
    13,217.22/18,238.08 = 7,552.34/x
  3. Step 3: Cross multiply
    13,217.22x = 18,238.08 × 7,552.34
  4. Step 4: Simplify right side
    13,217.22x = 137,740,071.04
  5. Step 5: Solve for x
    x = 137,740,071.04/13,217.22
  6. Step 6: Final answer
    x = 10,421.26

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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.