Home / 13,253.53-18,290.03-7,285.21

Finding the Fourth Proportional to 13,253.53, 18,290.03 and 7,285.21

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Solution

The fourth proportional to 13,253.53, 18,290.03 and 7,285.21 is: 10,053.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.53 : 18,290.03 = 7,285.21 : x
  2. Step 2: Convert to fraction form
    13,253.53/18,290.03 = 7,285.21/x
  3. Step 3: Cross multiply
    13,253.53x = 18,290.03 × 7,285.21
  4. Step 4: Simplify right side
    13,253.53x = 133,246,581.58
  5. Step 5: Solve for x
    x = 133,246,581.58/13,253.53
  6. Step 6: Final answer
    x = 10,053.67

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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.