Home / 13,718.84-20,578.25-4,953.76

Finding the Fourth Proportional to 13,718.84, 20,578.25 and 4,953.76

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Solution

The fourth proportional to 13,718.84, 20,578.25 and 4,953.76 is: 7,430.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.84 : 20,578.25 = 4,953.76 : x
  2. Step 2: Convert to fraction form
    13,718.84/20,578.25 = 4,953.76/x
  3. Step 3: Cross multiply
    13,718.84x = 20,578.25 × 4,953.76
  4. Step 4: Simplify right side
    13,718.84x = 101,939,672.66
  5. Step 5: Solve for x
    x = 101,939,672.66/13,718.84
  6. Step 6: Final answer
    x = 7,430.64

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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.