Home / 13,776.88-20,670.84-5,012.40

Finding the Fourth Proportional to 13,776.88, 20,670.84 and 5,012.40

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Solution

The fourth proportional to 13,776.88, 20,670.84 and 5,012.40 is: 7,520.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,776.88 : 20,670.84 = 5,012.40 : x
  2. Step 2: Convert to fraction form
    13,776.88/20,670.84 = 5,012.40/x
  3. Step 3: Cross multiply
    13,776.88x = 20,670.84 × 5,012.40
  4. Step 4: Simplify right side
    13,776.88x = 103,610,518.42
  5. Step 5: Solve for x
    x = 103,610,518.42/13,776.88
  6. Step 6: Final answer
    x = 7,520.61

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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.