Home / 15,238.23-21,069.62-13,370.16

Finding the Fourth Proportional to 15,238.23, 21,069.62 and 13,370.16

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Solution

The fourth proportional to 15,238.23, 21,069.62 and 13,370.16 is: 18,486.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,238.23 : 21,069.62 = 13,370.16 : x
  2. Step 2: Convert to fraction form
    15,238.23/21,069.62 = 13,370.16/x
  3. Step 3: Cross multiply
    15,238.23x = 21,069.62 × 13,370.16
  4. Step 4: Simplify right side
    15,238.23x = 281,704,123.69
  5. Step 5: Solve for x
    x = 281,704,123.69/15,238.23
  6. Step 6: Final answer
    x = 18,486.67

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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.