Home / 13,748.24-20,603.16-6,815.76

Finding the Fourth Proportional to 13,748.24, 20,603.16 and 6,815.76

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Solution

The fourth proportional to 13,748.24, 20,603.16 and 6,815.76 is: 10,214.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.24 : 20,603.16 = 6,815.76 : x
  2. Step 2: Convert to fraction form
    13,748.24/20,603.16 = 6,815.76/x
  3. Step 3: Cross multiply
    13,748.24x = 20,603.16 × 6,815.76
  4. Step 4: Simplify right side
    13,748.24x = 140,426,193.80
  5. Step 5: Solve for x
    x = 140,426,193.80/13,748.24
  6. Step 6: Final answer
    x = 10,214.12

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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.