Home / 13,764.84-20,647.28-4,999.74

Finding the Fourth Proportional to 13,764.84, 20,647.28 and 4,999.74

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Solution

The fourth proportional to 13,764.84, 20,647.28 and 4,999.74 is: 7,499.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.84 : 20,647.28 = 4,999.74 : x
  2. Step 2: Convert to fraction form
    13,764.84/20,647.28 = 4,999.74/x
  3. Step 3: Cross multiply
    13,764.84x = 20,647.28 × 4,999.74
  4. Step 4: Simplify right side
    13,764.84x = 103,231,031.71
  5. Step 5: Solve for x
    x = 103,231,031.71/13,764.84
  6. Step 6: Final answer
    x = 7,499.62

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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.