Home / 13,319.63-18,381.02-7,351.24

Finding the Fourth Proportional to 13,319.63, 18,381.02 and 7,351.24

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Solution

The fourth proportional to 13,319.63, 18,381.02 and 7,351.24 is: 10,144.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.63 : 18,381.02 = 7,351.24 : x
  2. Step 2: Convert to fraction form
    13,319.63/18,381.02 = 7,351.24/x
  3. Step 3: Cross multiply
    13,319.63x = 18,381.02 × 7,351.24
  4. Step 4: Simplify right side
    13,319.63x = 135,123,289.46
  5. Step 5: Solve for x
    x = 135,123,289.46/13,319.63
  6. Step 6: Final answer
    x = 10,144.67

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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.