Home / 13,133.76-19,688.40-4,811.76

Finding the Fourth Proportional to 13,133.76, 19,688.40 and 4,811.76

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Solution

The fourth proportional to 13,133.76, 19,688.40 and 4,811.76 is: 7,213.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,133.76 : 19,688.40 = 4,811.76 : x
  2. Step 2: Convert to fraction form
    13,133.76/19,688.40 = 4,811.76/x
  3. Step 3: Cross multiply
    13,133.76x = 19,688.40 × 4,811.76
  4. Step 4: Simplify right side
    13,133.76x = 94,735,855.58
  5. Step 5: Solve for x
    x = 94,735,855.58/13,133.76
  6. Step 6: Final answer
    x = 7,213.16

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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.