Home / 13,217.76-19,814.88-5,015.52

Finding the Fourth Proportional to 13,217.76, 19,814.88 and 5,015.52

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Solution

The fourth proportional to 13,217.76, 19,814.88 and 5,015.52 is: 7,518.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.76 : 19,814.88 = 5,015.52 : x
  2. Step 2: Convert to fraction form
    13,217.76/19,814.88 = 5,015.52/x
  3. Step 3: Cross multiply
    13,217.76x = 19,814.88 × 5,015.52
  4. Step 4: Simplify right side
    13,217.76x = 99,381,926.94
  5. Step 5: Solve for x
    x = 99,381,926.94/13,217.76
  6. Step 6: Final answer
    x = 7,518.82

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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.