Home / 13,217.05-18,239.77-7,248.67

Finding the Fourth Proportional to 13,217.05, 18,239.77 and 7,248.67

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Solution

The fourth proportional to 13,217.05, 18,239.77 and 7,248.67 is: 10,003.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.05 : 18,239.77 = 7,248.67 : x
  2. Step 2: Convert to fraction form
    13,217.05/18,239.77 = 7,248.67/x
  3. Step 3: Cross multiply
    13,217.05x = 18,239.77 × 7,248.67
  4. Step 4: Simplify right side
    13,217.05x = 132,213,946.16
  5. Step 5: Solve for x
    x = 132,213,946.16/13,217.05
  6. Step 6: Final answer
    x = 10,003.29

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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.