Home / 13,518.79-20,287.23-4,753.67

Finding the Fourth Proportional to 13,518.79, 20,287.23 and 4,753.67

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Solution

The fourth proportional to 13,518.79, 20,287.23 and 4,753.67 is: 7,133.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.79 : 20,287.23 = 4,753.67 : x
  2. Step 2: Convert to fraction form
    13,518.79/20,287.23 = 4,753.67/x
  3. Step 3: Cross multiply
    13,518.79x = 20,287.23 × 4,753.67
  4. Step 4: Simplify right side
    13,518.79x = 96,438,772.87
  5. Step 5: Solve for x
    x = 96,438,772.87/13,518.79
  6. Step 6: Final answer
    x = 7,133.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.