Home / 13,515.79-20,274.77-4,752.67

Finding the Fourth Proportional to 13,515.79, 20,274.77 and 4,752.67

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Solution

The fourth proportional to 13,515.79, 20,274.77 and 4,752.67 is: 7,129.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.79 : 20,274.77 = 4,752.67 : x
  2. Step 2: Convert to fraction form
    13,515.79/20,274.77 = 4,752.67/x
  3. Step 3: Cross multiply
    13,515.79x = 20,274.77 × 4,752.67
  4. Step 4: Simplify right side
    13,515.79x = 96,359,291.14
  5. Step 5: Solve for x
    x = 96,359,291.14/13,515.79
  6. Step 6: Final answer
    x = 7,129.39

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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.